Sooo my left arm is painful and feeling slightly warm and numbish like pins and needles but not quite if that makes sense and my chest is tingling ! Now this is worrying me! Iv been on sertaline for 7 weeks now and felt like I was doing really well but the past 2 weeks been having terrible palpitations again and now I'm laying in bed with this tingling. Anyone experienced this or is it an A&E trip ?