I'm on lithium for b type2 and trazodone 50mg (to sleep) and citalopram 20 mg. I experience constant hands tremors and poor memory is that normal?

Side effects. Slight tremor may happen at therapeutic lithium levels. Sometimes one can feel lethargic with lithium, and that could affect memory. Please talk with your psychiatrist about these effects. Hoping you're having your lithium level checked periodicially also.
Lithium side effects. Tremor is a known side effect of lithium a lithium blood level can ensure that the dosage does not need to be modified medicine can be added to lithium to reduce severity of tremor if it is preferred to continue lithium based on overall benefit memory problems may be related to residual symptoms of condition or lithium as well.