Lamictal is classified as a mood stabilizer. Which is exactly what is needed when our moods go from so up to so down. There are others out there, and they DO all have one side effect or another - just like many medications for physical illnesses out there.
Lexapro is an SSRI - normally folks who are bipolar try to stay away from these because in a percentage of people with bipolar disorder an SSRI can tip us over into mania.
Sometimes if someone is on a mood stabilizer, like you are with the Lamictal, it will prevent that from happening.
Medication is a problem for some of us as you can tell from other posts.
I've been on meds for 20 yrs and I don't care whether I suffer from a few side effects or not - it's better than going totally bonkers or so depressed I can't move...
I'm hoping you'll work with your doctor on getting the right med or meds for you -
Please be sure to understand that denial can be our middle name and keep reading for different points of view.