Ttc with pcos

Ladies, has you gyno let you change your medication when it's making you constantly sick, ive been taking metformin for almost a month now and has been giving me such bad body pains, cramps and diarrhea. I called about a week ago and said that I was having these symtoms and he said that it's not the pills, and said I should lower my dose to one pill a day and if it doesnt change in a week I should get a covid test( which i find super dump I havent been out in 2 months and don't have contact with anyone)