I also wanted to share my experience.
Started on Friday morning - so today is day 5 for me (I injected right after I picked up the injection, as couldn't wait to start)
Head some light headache day 1 but then it went away.
Also had light nausea on day 2, but I think it was because I didn't eat much.
Constipation, started taking fiber tablets on day 3 and it seems to be returning to normal (slowly)
I'm also burping more than usual (not sulphur burps, just normal ones).
I weighed myself this morning, I have lost 2.6 kg (about 5.5 lbs).
Lastly, on hunger /appetite.
My appetite was non existent for the fist 3 days. It now stated to return slowly (I'm not craving food, but the thought of eating doesn't make me feel 🤢 anymore). As for hunger, I still don't feel any hunger at all. I try to eat 3 times a day at normal times (brekkie/lunch/dinner), but consider this more of a obligation rather than desperation (I lived to eat before so this is a completely new concept to me).
I'll try to get into habit only weighing myself once a week, on injection day, but was too eager to know.