I've been having a really hard time with my sleep schedule. I tend to crash around 7 or 8 in the evening and can barely stay up past 9 p.m. It's like my body just shuts down after dinner, and I'm struggling to understand why this is happening. On top of that, I'm experiencing some other weird stuff. Whenever I sit down or stand up quickly, my heart starts racing like crazy, and it also happens if I suddenly fall onto the bed. I've heard of postural orthostatic tachycardia syndrome and anxiety symptoms, and I know they can cause things like this, along with heavy sweating and really dry skin. But even after trying anxiety meds, nothing seems to change. What could be going on with me? Any ideas?

It sounds like you may be experiencing symptoms of postural orthostatic tachycardia syndrome (POTS). POTS is a condition characterized by an abnormal increase in heart rate that occurs after sitting up or standing. The symptoms you described, such as racing heart when changing positions, feeling tired in the evening, and sweating, can be associated with POTS. For the symptoms of POTS, you can try increasing your fluid and salt intake, wearing compression stockings, and doing exercises to improve blood flow. Additionally, medications like midodrine or fludrocortisone may be prescribed to help manage your symptoms. It is important to consult with a healthcare professional for a proper diagnosis and treatment plan.