I have one calf that cramps at night and an ILT that hurts. I've been chasing the symptoms for years. PT to build strength in hamstrings, glutes and core helped, but even so I sometimes am in misery. Percoset, magnesium and staying hydrated helps. I tried gabapentin without any good effect so stopped that. I didn't take the Lyrica either. Some foods set it off, but again nothing consistent. I don't know if going off Methotrexate about the same time as the problem appeared is connected. However, I did have MRIs here and there and the only commonality is Hoffa Syndrome. Past EMGs and xrays are normal. The pain clinic where I have my Percoset prescribed to keep me asleep recommended a nerve block and it does help with the restlessness/cramping but not the tendon. I found edema massage (toes to torso) before bed helps, but sore hands (I have MCTD with fibro) are a problem. I purchased The Stick for nightly massage and it is easier. Some have those massaging leg sleeves for circulation and find those help. PT helped somewhat, and I think movement might be key, but not sure what consistently helps. Biofreeze and heating the back of my knee (I don't have Baker's Cyst) before sleep and cool pak if I awaken seems to help. A good CBD ointment sometimes helps, as does a lidocaine patch. I haven't tried Magnesium cream yet. Don't give up; I know someone, sometime will figure this out!