I am suffering from severe anxiety (suspected hyperadrenergic postural orthostatic tachycardia
syndrome - hyper pots) which causes my heart rate to increase by 30-50 beats per minute upon standing along with blood pressure increase, and so it's hard for even to even stand because of heart palpitations, fatigue, dizziness etc, and so i lay in my bed for 22-23 hours daily for 8 months, my muscles are GONE, i am only existing.