Hi there. I note your problem in its entirety with all the details supplied. If indeed your history is accurate & you have your periods et al, you have absolutely NOTHING to fear as regds pregnancy
. All these symptoms could well be related to your anxiety
levels & hypochondria as you so rightly suggested & the natural progession as regds the treatment would be to visit a pyschologist/psychiatrist/counsellor in your area or you may contact one on this site for further managament. Cheers & Hope this answer is precise, to the point & clears the air for you. Wish you good health & prosperity. Cheers!