Vomiting, Stomach Pain. Had Tomato Sauce. Am I Allergic?

Is it possible that I have developed an allergy to tomato sauce/ground beef? two weeks ago we had lasagna for dinner and I threw up several hours later (at the time I thought I had the stomach flu cause I had been lightheaded for a nearly a week). I ve since been better, however last night we had spaghetti with meat sauce and about two hours later I started vomiting . Since 10pm (it s now 4:30) I have thrown up 5 times. I took a Motrin and two pepto bismols at 1:30 because the cramping in my stomach was so severe and I just now (two hours later) threw up the pepto and glass of water I drank. is it strange to throw up the meds after two hours? and does this sound like food poisoning/allergies??