Baby spit up?

I have a 6 month old baby girl and she has always been a 'puker'. She spits up so much and so often that I have to carry a receiving blanket at all times. She is healthy and a good weight so there is no problem there. The thing is, I am going to start her on solid foods right away and I am worried. I really can't see her growing out of this anytime soon so I feel like I have to get ready for a new phase of projectile spit up, mashed peas and carrots and so forth. She even spits up in her sleep and still chokes on it even now at 6 months. Sometimes she even wakes herself up choking on it. It was a whole lot worse when she was younger so she has progressed a little bit, she doesn't choke nearly as often as before (it used to be a few times daily) but she still pukes up A LOT. Sometimes when I put her down for a nap she fusses and fusses and then finally pukes up a mive amount and then falls asleep. She's on formula but it was the same with milk for the first 3 months