Hey Stano,
Check this out! Are you taking any statins like Simvastatin, Crestor, Lipitor, etc? I am and I stopped taking them, trying to make a link between the drug and some eye problems. Well, my eye problems didn't improve but, low and behold, my hip pain did. Within three days of stopping the Crestor, my hip was feeling much better. I didn't make the connection until a friend said she had had problems with her IT bands, related to her statin use. I've gone back on the Crestor and within two days the inflammation is back. If you search statins and tendonitis, you'll find some articles about tendon damage up to and including rupture, due to statin use. They are rare but they do occur. I obviously don't know what your diagnosis is but, even though my doctor knows exactly what medications I'm taking, he never made the connection between my pain and the stain use. I'm still not positive that Crestor is exacerbating my condition but, when I go off of it again in a few days and the pain goes away, again, the link will be hard to deny.
Just thought this info might be helpful to you...
Windie