Hip and groin pain

I am a 55 year old woman. About 10 years ago I began having pain deep on my hip in the middle of the night. Sometimes it was my left hip, other times my right.

I assumed I was getting arthritis. One night when it was really bad I got up and realized the more I walked, the less the pain.

I then assumed it was a muscle spasm, as weight-bearing made it disappear.

About 6 months ago I began having the same type of pain in my groin, again in the middle of the night.

I can't link the pain to any specific activity. I am beginning to think I have Iliopsoas Syndrome.

I am going to begin the stretching exercises on your site tonight!