Is it normal im sick of my mind?

Im sick and tired of my mind! I have been in a bad head space for the last month and a half. Anxiety mostly thats caused my mind to go stupid! I can't even relax and have a lunch outing with my fam without being fidgety. It pretty much consumes me, anxiety is always on my mind and I get weird thoughts. My stomach has been fucked up every day and sometimes I get weird flinching, twitching sensations. I feel lost most of the time. I have a lot of support and my mum thinks I'm getting better but I bluff it to make her happy. I try to see all the precious things in my life and am very grateful for all the small things. I just don't feel right though. I can't laugh properly because I feel im stuck. I try breathing exercises but it only works during that small moment, then my mind realises it needs to run around in circles again and I can't enjoy the moment. Am I weird, or crazy? I get bad thoughts that do bother me. I try to accept them but I either get heart palpitations or my stomach gets tense! I do think I'm doomed in this mind set. My brain just doesn't listen to me!!!??