I tell u my details symptoms 1 I don't feel stress before sleep and I have good sleep of 7 to 8 hours 2 sometimes I feel heart palpitations during sleep and also sometimes I feel stress after wake up and this problem solved after sometime 3 I don't drink or smoke and don't feel tired,lazy, anxious and frustrated due to anxiety 4 I wake up in good mood but sometimes I feel suddenly stress and I don't eat fast food 5 I take food only two times and I have gastric and acidity problem but this problem not affect my hunger,I feel hungry on time 6 sometimes suddenly I feel like I am lazy and like fell down but normal after sometime,but during this I feel gastric and pain 7 my stomach is empty good in morning and I don't feel constipation 8 in summer I have gastric and pain but Im winter I have gastric and burning and acidity So tell me it is due to anxiety,or pitta problem and head feel heavy on back above neck