I have been taking Lexapro for 2 years and have had pretty bad neck and shoulder pain most of the time, and my sleep apnea has gotten worse (I have a physical in December and will address this issue with my Doctor) in the last 4 to 6 months I am having big problems with short term memory loss such that often with in 15 to 30 minutes or an hour, I will have no recollection of a conversation which required action from me. Someone can remind me with great detail and I may remember but often not. When I started taking Lexapro I was on a 10 mg dose, then went to 15 mg about 10 months later and then 20 mg at 14 months, I reduced back to 15 mg about 1 month after me wife died in June from cancer as stress was some better in my life, then a month later (August) to 10 mg and am down to 5 mg for the past 5 days.