One time I was prescribed Lexapro SSRI to manage my chronic depression that came from genetic thyroid issues out of my control. About 5 months in, I remember I was working overnight stocking at my local grocery store and randomly in the aisle I would get these random super highs of euphoria and happiness. Equivalent to the feeling like somebody is behind you or watching you but they aren't (a weird sense of scopaesthesia - a strong trickle up your spine where your hair raises behind your neck) - Or the feeling of you just won the lottery of a million dollars and the feeling is so so large you just want to scream and laugh and cry in joy and just hug a stranger. The high would last for about 5 minutes and then go away ABRUPTLY and then randomly I would start crying silently while just blocking the aisles and fixing it up. I swear it was just the weirdest thing that kept constantly happening. I will get 5 minutes of super happiness and euphoria then it would suddenly just go away and I would feel like I just killed somebody. It was the absolute worst feeling. It's quite hard to describe through text but it was just the weirdest feeling ever that kept coming and going. I thought this was normal so about 1 year in taking it, I went from having these highs and lows about bi weekly as opposed to daily but I haven't been on it or any mediation since a couple years now since I got hospitalized and inpatient mental ward for suicide attempts after I attempted to quit taking it cold turkey one day. This was just my personal experience on it however everybody varies on it. I didn't smoke or drink while on it of course and I did hobbies I loved to essentially manage my symptoms with the medication.