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ForumsExercise & Body CompositionThrew up at the gym on injection day - lesson learned — 12 month update

Threw up at the gym on injection day - lesson learned — 12 month update

tom_AK Wed, Nov 27, 2024 at 2:56 PM 9 replies 1,621 viewsPage 1 of 2
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tom_AK
New Member
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Jan 2026
Anchorage, AK
Nov 27, 2024 at 4:21 PM#1

I inject my Wegovy every Thursday morning and I've noticed a definite pattern in how I feel throughout the week:

  • Thursday (injection day): Fine for a few hours, then nausea and fatigue kick in by evening
  • Friday: Worst day. Nauseous, exhausted, zero appetite, zero energy
  • Saturday: Starting to feel better, still a bit off
  • Sunday-Wednesday: Feel great, good energy, appetite somewhat normal

Currently I'm trying to work out 3x/week and struggling with scheduling. If I train Thursday I feel fine but the post-workout recovery gets tanked by the injection side effects. If I skip Fri/Sat I lose 2 potential training days.

How do you all schedule your workouts around injections? Does timing actually affect results or am I overthinking this?

13 17steve_okc, dave_SLC, FDA_TrackerJim and 10 others
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MikeNYC_runner
Member
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Jul 2024
New York, NY
Nov 27, 2024 at 4:38 PM#2

You're not overthinking it at all — this is one of the most common scheduling challenges my GLP-1 clients face. The side effect pattern you describe is extremely typical.

My general recommendation: schedule your key training sessions on your "good" days and use injection/recovery days for light activity or rest.

For your Thursday injection schedule, I'd suggest:

  • Sunday: Resistance Training Day A (you're 3 days post-injection, feeling good)
  • Tuesday: Resistance Training Day B (5 days post, peak energy for most people)
  • Wednesday OR Thursday morning: Resistance Training Day C (pre-injection or early injection day)
  • Friday: Complete rest or gentle walking only
  • Saturday: Light activity — easy walk, stretching, yoga

The "golden window" for most weekly injectors seems to be days 3-6 post-injection. That's when side effects have subsided but the medication is still providing good appetite control.

Last edited: Nov 27, 2024 at 6:38 PM
23 9HealthEcon_DC, PedsEndoPhilly, SleepDoc_PDX and 20 others
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labquiet_amy
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Mar 2024
Cambridge, MA
Nov 27, 2024 at 4:55 PM#3

I switched my injection day specifically to optimize my training schedule and it made a huge difference. I inject Monday evenings and train Wednesday, Friday, and Saturday. By Wednesday I'm through the worst of the side effects and have three good training days in a row.

If your doctor is flexible on which day you inject, it's worth considering which day gives you the best training window. Obviously keep it the same day each week — just pick the day strategically.

Last edited: Nov 27, 2024 at 6:55 PM
44 11LibrarianMeg, bri_stats, pete_manc_UK and 41 others
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wendy_avl
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Oct 2024
Asheville, NC
Nov 27, 2024 at 5:12 PM#4

That schedule makes so much sense. I've been stubbornly trying to do Mon/Wed/Fri and Fridays are just absolute wastes — I show up to the gym and can barely move any weight.

Interesting idea about switching injection days. I picked Thursday randomly when I started. Might ask my doctor about moving to Friday evening so my worst days (Sat/Sun) are when I'd naturally rest anyway, and I get Mon-Thu as training days.

Last edited: Nov 27, 2024 at 11:12 PM
34 17PharmHunterJen, TomTeleRx, DoseLogDan and 31 others
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fiona_glasgow
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Aug 2024
Glasgow, UK
Nov 27, 2024 at 5:29 PM#5

I inject Friday nights for exactly the reason Sally just described. Worst days are Saturday and Sunday when I'm at home anyway. Monday through Thursday are my training days and I feel great for all of them. Game changer.

One tip — inject AFTER dinner on your injection day, not before. Eating a solid meal beforehand seems to reduce the nausea for me. Taking it on an empty stomach is brutal.

27 7NeuroNate, JessicaH_TX, KevinCompounds and 24 others
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