It's important to note that seeking advice from a licensed mental health professional would be the best course of action for personalized support and understanding your specific situation.
However, I can tell you that experiencing anxiety and intrusive thoughts is not uncommon, and involuntary physical reactions like shaking your head or twitching can sometimes be a response to the distress caused by these thoughts. These physical reactions can be seen as a way for your body to cope with the stress and tension that comes with anxiety and intrusive thoughts.
That being said, if you are concerned about these physical reactions or if they are causing you significant distress or impairment in daily life, it's essential to consult with a mental health professional. They can conduct a thorough assessment and provide you with a proper diagnosis and treatment plan.
Remember, mental health is as crucial as physical health, and seeking support from a professional can be very beneficial in managing anxiety and intrusive thoughts. In the meantime, you can also try some coping strategies like deep breathing exercises, mindfulness techniques, or grounding exercises to help you manage anxiety and reduce the impact of intrusive thoughts.
If you ever feel overwhelmed, don't hesitate to reach out to friends, family, or helplines for support. Remember that you're not alone, and there are resources available to help you navigate through these challenges.