I woke this morning with the feeling of something bad was going to happen.I have had it all day and can't seem to shake it.I even took an antianxiety med for it but can't seem to shake it.I asked a question on a questions board last night about something and a med student wrote to me and gave me a answer that i wasn't expecting and I can't seem to get it off my mind although I went on a medical board and ask a heart expert the same question..His answer was a more positive its normal thing..but for some reason I can't shake this feeling and have been concerned about my heart and breathing all day .. Can someone help me put this to rest? It gives me the creeps..I keep thinking how can you know if you really have an heart issue or not? I keep waiting for something to happen..anyone else feel this way ?