Bloating/weight gain

Hey ladies, I’m 21 and have PCOS (polycystic ovary syndrome). For years my weight was always basically the same, but recently I cannot stop bloating. Whether or not if I’m on my period, I seem to bloat way more than other people my age. I began taking an antidepressant last year, which initially made me gain weight, but because I keep bloating, I’m not sure if it’s the antidepressant, my PCOS, or maybe something else? Does anyone have any advice or have been through something similar?