I'm surprised joint hypermobility didnt come up in this conversation (yet). About 10% of the population has benign or non-generalized joint hypermobility. Lax ligaments allow more motion in the joint which permits excess popping and clicking.
In females, ligament laxity is more pronounced in the luteal phase of the menstrual cycle. (And during pregnancy, and thereafter a second pregnancy).
Vitamin C may help over long term. Glucosamine sulfate may help in those who also have allergic symptoms. Glucosamine sulfate inhibits mast cells in connective tissue. Theres a hypothesis (research pending) that mast cell activity causes the degradation of collagen in hypermobility disorders.
Prolotherapy and physical therapies are the best current treatments for hypermobility. A physical therapist can teach you how to move without stretching the joint capsule.
Clicks can be tendon snaps. If so, a physical therapist can help you with that too.
Massage therapy is not recommended in general for hypermobility, except if needed to correct a subluxation or relieve pressure on nerves.
Sorry to write a book! I hope it helps the next person who searches fir or stumbles upon this thread!