Can you feel a cord (thickening of a tendon) or a nodule on a tendon in the palm of your hand? Those would be characteristic of Dupuytren's disease. Dupuytren's disease is often associated with frozen shoulder. Dupuytren's can be worsened by pressure on the cords such as from lifting weights in physical therapy. It helps to support the hand with the support gloves that weightlifters use. Have you seen a hand surgeon? They are the best doctors to diagnose Dupuytren's. I would join a Facebook group for people with Dupuytren's. The members can help you find doctors that treat the condition with collagenase injections or topical Verapamil gel. I was able to dissolve a Dupuytren's nodule by faithfully applying the Verapamil gel.