Without examining you, I can not give you a definite answer. One consideration is rheumatoid arthritis or something similar. There are viral and bacterial illnesses that might also cause these symptoms, such as a strep infection.
You should discuss this further with your doctor, or perhaps see another one.
Posted By Vivian Abrams DPM on October 01, 2005 at 16:04:18:
The proprietary gel also provides extra protective padding to help comfort the pain caused by metatarsal soreness. May be used for relieving the burning sensation under the metatarsal heads, calluses and tarsal fat pads.