I've been on Lamictal for a little over a year working up from 50mg to now 150mg. This has been working great but my doctor and I discussed increasing my dosage to 200mg (and maybe higher) due to some depressive/hypomanic episodes the past few months. I am also taking birth control so we discussed that increasing dosage might be a good step forward. 

However, the first two weeks of taking 200mg I started noticing pretty bad heart palpitations which made it difficult to fall asleep (I take my medication at night). During the day the heart palpitations lessen but combining this with my daily coffee (1 cup per day) was not a fun time. How should I approach this with my psychiatrist? We lowered the dosage back to 150 but I've mentally/emotionally been going through a hard time. 

Also, I think I'm just someone who is physically sensitive to medication. When I was tapering off Zoloft I experienced weird brain "zaps" and nightly cold sweat, Prazosin caused heart palpitations and nasal congestion, and now this with Lamictal. Even after reducing my dosage I still have heart pounding and need to do breathing exercises at night to fall asleep (it's been 2 months). 

Anyone else hypersensitive to medication?