I just got on lithium 300 mg. a couple of months ago.It gives me a bad stomach aches but it sure does help w/my mood swings.Now my Dr.has changed me to Eskalith(lithium) CR 450mg.hoping I will not have all the stomach aches.Their are so many side effects to lithium it is really scary.I found more side effects on this website than I knew about.I'm thinking of not taking it.The list goes on and on.I'm so scared,what should I do?