I Can't Talk Properly

Lately, I haven't been talking that much and it seems to be every time I do talk my words come out weird. I either talk too fast or I slur my words together or I talk in a strange pitch. If I talk often the words come naturally but it seems to be whenever I talk after not talking for a while everything gets all messed up. It's annoying because I want to talk more but when I talk strangely it makes me feel unconfident and I get quiet again.

Also sort of on the subject of talking I saw my best friend recently after we had been unable to meet up for a couple of weeks. It made me realize how different my relationship is with her than with my other friends. Maybe it's because we've known each other for so long and there's literally nothing we don't know about each other but it's so easy to hang out with her. With her, I can make stupid jokes or act completely idiotic. It made me realize that she's probably the only friend who I act like myself around. That is kinda sad but also good that I have a person like her in my life. With other people,  I would constantly be worried about saying the wrong thing but with her, I know it's not a problem. I'm still forever thankful that she's a part of my life because if she wasn't around I think I would go crazy. Even if I don't talk well or I don't always make sense, I still need to be able to talk. I'm not upset with my other friends for not knowing this, it's just a little annoying that I'm unable to act like myself or say what I want to say around them.