I had all of these word finding, typing, and speaking problems to a more severe level during a serious depressive episode. They can be caused by things other than brain injury. My psychiatrist got my brain working with nutrition, supplements and B-12 shots over a period of 8 weeks.

Yes, I do things/thinks and a myriad of others like loud/load, my/mine, no/not, and so many that I have to reread what I type, then post it and reread it again.

Grammarly.com has a good app for this.