... Unfortunately, we have an EXTREMELY collic baby at home and every waking second she's awake she's SCREAMING her head off (except when she's eating).
You need to get that baby's spine checked. Find a good chiropractor in your area and have him/her check your baby. It is perfectly safe for babies and most of the babies I have seen with colic symptoms have dramatic results. If you want a low force technique check Chiropractor | Chiropractic Seminars | Chiropractic Instruments | Activator Methods
to find a chiropractor who uses an adjusting instrument to correct problems. This is what I use in my office, and I have adjusted newborns without them even waking up! I would suggest at least looking into it. I have had parents say chiropractic changed their lives just by helping out baby. If you have any specific questions feel free to ask them here or by pm. I would be glad to give you all the info you need.