I'm dying of anxiety right now

So I read up on Infantile Spasms a while back, because I'm a freak and obsess over everything. I decided to try the bassinet tonight for my son, which hes never slept in. Anyway, I lay him in there and hes asleep like 2 seconds of course. So I put him bottle in his mouth and while he was eating, or more just sucking for comfort, he had like 5 startle reflexes in a row. He was kind of half asleep. Some happened when he opened his eyes but he still kind of looked asleep. So I'm fucking terrified. I dont know if it's worth calling the dr immediately. Because he COULD have just been startling because hes never really slept flat, hes usually in his rock n play or on me or his boppy. I cannot deal with the anxiety. I'm so scared. Has anyone suspected such things and have it be just exaggerated startle reflex? I'm going to mention it to the dr when he goes in May but I'm not sure if its worth mentioning before that, especially if it doesnt happen again. I'm the type to obsess and literally cry over the possiblity of something like that happening. Help :(