IT is about this age that my son's reflux surfaced. It is what they used to call colic and your child used to have to just outgrow it--it sounds like.
It took me going to the doctor three times to get a diagnosis. The over the counter stuff is not enough. In my son's case we had to give him a baby does of mylanta to coat and heal the damage already done and the prescription which I think is like a baby syrup of tagamet. {he is 2 1/2 and only took it until he was about 6 months--and like I said--four kids in the house--I do not remember exactly ;0)} I also noticed with him that he NEVER really burped. No matter how hard we tried. I am a breast feeding momma, but had to supplement him because I had mastitis at around this same point.
I have three older children, so I do know what I am talking about when I would tell them that his behavior was not normal. They just said, "Oh you have been so lucky, it is time that you had a fussy baby." I finally called in the middle of a monster fit, and took him during it. I laid him on the table, his face was red and distorted, his stomach felt like a rock--the doctor took one look and said--he has reflux. In my son's case, they called it 'silent reflux' because he was unable to vomit like your daughter. All of that milk and acid would just ooze back up his esophagus and he would get horrible heart burn. It sounds like that might be what is going on with her.
I would have the doctor look at her. Also try and write down exactly what happens so you can describe it well.
In the meantime, try lying her face down on your knees and steady her with your hand and kind of swing your legs back and forth. Running the vacuum calmed Micheal a little. So did putting his car seat on the dryer and standing there and holding on to the seat while the dryer runs. Of course, DON'T just leave him unattended. My little man was always better sitting up. Slept better in his car seat. SO that is where he slept. Really, if this is the problem and you can get it diagnosed--the medicine is a wonder! She will be a different child.
hope this is helpful!