If you're aware of your stutters/stammers/word-finding difficulties/etc. when speaking -- is it more likely that anxiety is causing it, rather than a neurological (i.e. brain injury) problem?

I've been avoiding this site (and other medical forums) because... cyberchondria and all. So far, so good - I think I'm coming up on about two weeks since I vowed to stop consulting Dr. Google.

But lately, I've been stuttering, tripping over my words, and struggling to think of the right things to say - whether it's online or offline. I've always had social anxiety to some degree, but... I can't help but wonder if this is "normal" for me or not?

I'm still experiencing problems with daytime sleepiness and (thankfully mild) TMJD pain. Headaches are few and far between, which is probably a good sign! However, I tend to (accidentally) bump my head on various hard surfaces- the car door, the top bunk of a bunk bed, the underside of a table, things like that.

It's never hard enough to make me dizzy, nauseous, or get a serious headache. But.. is it still hurting my brain? I keep thinking back to that time I knocked my head against the wall, back in May - and could I still be recovering from that? I just don't know. I'd love to let this all go, but.. I'm not feeling 100%.

What are your thoughts on speech problems - and is there a difference between those caused by anxiety, and those by brain trauma?