Good Advice Much Needed.....

[ScreamingMisfit]

i am having trouble getting my male bci to eat and he seams to be loosing weight ..everything in his enclosure is optimal
day:89-91 f night 87-89 f
72%humidity durring the day 60% at night he is 7.5' and used to be a garbage can eating everything in sight now he has gone 2 months so i am starting to worry all my other snakes are eating perfectly never missing a meal ...i had him to the vet (Anderson Vet Clinic in whitby) and he got a clean bill of health and the vet said his feeding strike will pass but i am starting to worry..hes not loosing "alot" of weight but i interact with him multiple times a day so i notice these little things... any suggestions on curving this strike would be much appreciated

p.s.i have tried all the feeding tricks (dark hid over night,fresh killed ,f/t (always got f/t/) , braining the rat, rabbits (he usualy likes them),degues, i even tried a chicken to see if he was interested in it, i tried rubbing a frog on the f/t rat (can't remember who told me this but it has worked b4 on a ball python that didn't eat for 7 months b4 i got it ,and thanks to whoever that person is ) ..im just at my wits end i am getting too worried for my own good .....someone please stear me in the right direction....

thanx