Today I felt like I sprained my thumbs, why? (Details inside)

It’s tendonitis, I have it too, flares up when you over use your hands/wrists. Just another mid-life ache and pain. You just tweaked your old thumbs friend. lol

Gripping wrong in your sleep?

@Here2_4 I wondered about that too but I rarely use both hands.

Also, I noticed my big toe is objecting to being pushed off of.

I guess I will go to bed and see if tomorrow brings more muscle problems or less.

If it isn;t tendonitis as @Coloma mentioned (which can arise from too much texting or odd use of the thumb on a phone), it may be a touch of arthritis. The discomfort from arthritis may have spread dot your muscles.

Possibly Gout?

Generally acts up in the big toes and thumbs.

Are your thumbs weak as well, or just painful?

What you describe sounds like Arthritis (which doesn’t need over-use to manifest; it merely requires age or a deterioration of cushioning cartilage.)

You’re beginning to show your age :).

It happens to the best of us. Generally, colder weather is harder on the joints. And what time of year are we in?

Yup, you got it. It’s wintertime, Baby ! Be prepared for it to worsen as the weather gets progressively worse. Sorry, but that’s the unvarnished truth.

I would let that hand rest as much as possible for a few weeks. Don’t do anything that hurts if possible.

Next time you are at the doctor have your vitamin D checked, which I think is good for overall muscle health. Getting my vitamin D level up into the nornal range took me from feeling almsot like a cripple to nornal, unless I really push myself very hard. My pain and weakness was never in my joints, always in my muscles and tendons. I had no pain if I did nothing, but just a little use and I was in pain, shaky, it was like I was developing MS or Parkinsons, except I didn’t have all the symptoms, it was more like just muscle weakness.

Your D might be fine, and all you did was hurt in your sleep or yesterday without realizing.