they do happen!
I'd had tendinitis in my wrist for a couple of months. It started when I was turning a mattress. I tried Chinese acupressure, bandages and ointments, nothing helped. Luckily , it didn't cause much pain, but the swelling was always present. It's my right hand, too.
Now if you do a search on it, the official medical info will tell you that you need medication and probably also an operation. I decided just to wait and see since it wasn't bothering me that much.
Then I caught a cold. Nothing special but with this "delta variant" scare I wanted to get rid of it as soon as possible so I decided to try some vit.C. Now I have read that our bodies don't really absorb synthetic vit.C supplements well, especially in doses higher than 250 mg (mcg? I forget what it is), so I bought cranberry juice instead. Not the sugary mix from the supermarket either, but the real thing, pure and undiluted (it tastes horrible).
The cold became better after a couple of days, but since I already opened a bottle I kept drinking it for several more days. Mostly put a tablespoon in my tea. When the bottle was finished, the next day the swelling in my wrist was gone completely. Just like that.
I haven't done anything different, outside of cranberry juice and an extra helping of yogurt in the morning, but it couldn't be yogurt, could it now? I think cranberry juice.
Anyway, it proves that natural remedies work and that our food and drink influence us more than we think.