Previously wrote on this board about an icreased internal head pressure which has spread thoughout my entire body, sensations in extremeties more intense, abdomen too, seems very sinister but no results, had cat scan , no mri what are the differences?? larry and angela thganks for advice, angela you said you were diagnosed with a pituitary tumor, did this cause ongoing sypmtoms or sporadic, mine are 24 - 7!! Don't know if its cardiovascular, also have congenitla bicuspid aortic valve but seesm fine too!! Any help much appreciated!!!!!!!!