VasoconstrictorsAmphetamines
antihistamines
Cocaine
LSDLSA
Methylphenidate
Mephedrone
Oxymetazoline
Phenylephrine
Pseudoephedrine
Stimulants
Caffeine
Tetrahydrozoline hydrochloride (in eye drops)
PsilocybinThis list is from wikipedia. this doesn't mean you shouldn't worry. Vasoconstriction is normal, bur what you have sounds excessive. I would lay off LSD and mushrooms until you get to the bottom of it, but it's of course your choice...
JBArk is a Mandelthought; a non-fiction character in a drama of his own design he calls "LIFE" who partakes in consciousness expanding activities and substances; he should in no way be confused with SWIM, who is an eminently data-mineable and prolific character who has somehow convinced himself the target he wears on his forehead is actually a shield.