those side effects are typical for antidepressants, if you think they are bad, have a look at the side effects for asprin!
pamelor is one of the older tricyclic antidepressants and usually not used much, unless other types of ADs have failed, it has a suicide risk from overdose
lexapro is one of many prozac type AD meds, finding the best AD for you is trial and error, citalopram is very similar to lexapro and usually cheaper
there is no best AD for anxiety as everyone reacts differently to them