M.G.
You may want to be in touch with a chiropractor. I know my son had the same problem and it wound up being related to his digestive tract, which the chiro was able to adjust him and solve the problem. Dr. Wendy Baxter in Arlington is great with kids and owns Baxter Family Chiropractic. We have been going to the chiropractor since my son was 7 days old, and he has been in amazing health, and colic free:)