I take lithium, 1350mg/day, for 5 years now, and about 2 years ag...

I take lithium, 1350mg/day, for 5 years now, and about 2 years ago I started getting tremors but worse in my left hand, so it was actually painful and for a while the doctor thought it was carpal tunnel but it turned out not to be and he didnt know what caused it-now ever since then my left hand has gotten worse & typing with it is a little problematic, its like the nerves are messed up in that hand, it won't always hit the right numbers. Its starting to freak me out a little, but in the last year I've started having episodes where my entire left side goes tingly like its asleep, my vision blurs, I get shaky all over and have such rapid heart palpitations it feels like my entire body is in shock. This lasts for about half an hour usually, has landed me in the ER twice, & they claimed each time not to know what caused it and looked at me like I was making it up, and didn't give me anything for it. I also get the typical symptoms- mild hair loss, memory loss, speech impairment, weight gain (I was 120 now I'm 160- luckily it distributed so its not too obvious), & it does not stop depressive episodes, just shortens them, and I still get anger episodes fairly often, usually as a split second reaction to something very small. I'm definitely looking into getting off of this as it is worrying me, more about the episodes and my left arm/hand issues than anything else, especially that now I have trouble with coordination in my left hand,which sucks because my desk jobs always involve a LOT of typing.