epilespy or seizures??

.... I passed out twice at work on saturday and after the 2nd time i passed - the 7th.- out i had a seizure. i have to get a table tilt test done next friday. they strap me to a bed in different angles while they take my heart rate. this is to see if having my heart rate fast makes me passs out. otherwise they don't know y this happened. it is the 2nd time i had a seizure-i don't know what it looked like but i am gonna find out this weekend-, my 1st one was after i got blood drawn out of me in nov.-they don't think my 2nd seizure was one cuz it only lasted like 10-15 sec. mabey more, they usually last for a few minuetes,and the 4th time i passed out and i passed out in nov. after i got my blood drawn right before i had my seizure- this was like 10- 15 sec. long and i passe out rite after i swam in my race in my swim meet on april 18th, 2005.- if u count that i passed out twice at work. after the second time i passed out at work i had a seizure. my parents kinda don't want me going down to cape girardeau, missouri-i live in st. louis, missouri- for college next year cuz of this. i almost ended up on stand(i lifeguard) when it happened too- if sean wouldn't have had swim lessons i would of been on stand then i would of fallen off when i passed out then probably busted my head open... and all this has happened in about 2 years- it will be 2 years on april 18th this year. i don't want it to happen agin but if they don't know y it hapened it will happen agin... now i have to rethink about swimming on a team- st. louis spirit- a USS team- this summer... my docotor gave me big horse pills- amoxicillian- i have an infection somewhere in me becuase my white blood cell count is high....they done a CAT scan- 8 hours later, an MRI- 46 hours later,an EEG-56 hours later, an ultrasound of my heart,- all of these were normal. and i have to do a tilt test next friday. what will happen with the tilt test and if i have epilepsy will i pass out when they do the test?