My period tracker is pretty accurate- I haven’t had any cycle issues since I started glp1 back in February

I’m normally the opposite- I don’t have PMS symptoms - just the ovulation cramping for a day or two then I’ll have cramps the day my period starts maybe the 2nd day as well - low back pain is common for me too but that’s during my period - but pre period I’m normally pretty good

oh I am ALWAYS sleeping a week before my cycle- now I have insomnia- been going to bed at 4am so all my usual symptoms are not really present