Rare as hen's teeth...
It's referred pain from neck - most commonly the middle bit (C4/5) because you poke your chin out too much when you take a deep breath, because you've got a really tight, but painless, thoracic spine.
Stretch your thoracic spine, but keep your head on neck position "neutral".
Try this - take a deep breath in, then try this for 10 mins https://www.sixphysio.com/video/back-pain/theworldsgreateststretch then take another deep breath in - any difference?
....sure it's your calf giving the problem and not your sciatic nerve?
The definition of madness is doing the same thing over and over again and expecting a different outcome...
Cor - could be a bunch of other (& more probable) things.
Peroneal muscle/tendon, Common Peroneal Nerve, joint stiffness, poor loading, poor control, dodgy mechanics (deffo), sural nerve, odd things going on with your back.
It's easy to feel better (go stretch) more tricky to get better.....
Agree with Tricia - it's not OA. Clicking ain't no problem and doesn't relate to anything as long as it's not a painful click.
Have a try of this....https://www.sixphysio.com/video/running/self-tape-your-knee-mcconnell-patella-taping
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