left pinky finger has started to become difficult to use.

I'll start by saying that I'm not new to typing. I have been using proper home row technique for about a year and a half now, with no problems. Slowly but surely I was making improvements in speed and accuracy.

Recently however, my left pinky finger has started to become harder and harder to maneuver properly. It feels like its both weekend and stiff, and often I feel like it moves unnaturally when I use it, causing immense discomfort. Although not painful, it is extremely uncomfortable and makes me dread my day to day typing activities.

I used to be able to type at 120wpm with 98% accuracy, but I have since dropped back down to 88wpm because I cant stop focusing how difficult it is to get my left pinky to move properly.

Any advice? Normally I would go to the doctor, but they aren't the smartest individuals in my country and its not likely to solve anything.