hi all of last year i suffered a lot of anxiety and stress over some problems i had any way about six weeks ago i started getting some physical symptoms that as lasted everyday and night for six weeks here is a list of symptoms i have had my body feels heavy like gravity is pulling me down i get this feeling when sitting down walking and lying down pressure in head,   muscle twitchs/jerks,  muscle cramps can't concentrate properly, memory loss today the symptoms are feeling a little bit better i have a had all blood work done a brain mdi all normal the doctor said depression/anxeity could that cause all this they put me on sertraline two weeks ago