My son spits up, more than I think is okay, he has to be burped in mid feed so he won't spit all his bottle up, and burped after the feed again, both times he's burped he spits up alot. then he will spit up 3 or 4 times after that, some times it's a little formula, and often its alot of clear fluid with curdled formula, he's not in pain, he doesn't cry about it, but I am worried. He is gaining weight and is healthy, the doctor says that some babies just puke, but this much???