If you have got done all the tests, you must have done sugar levels and B.P. checked too.
Assuming everything is normal, we may attribute it to Pitta Kapha humors vitiation as per Ayurveda's principles.
As I advise to my own patients first of all Tarunikumakar chooran - a herbal powder is given for three days with warm water, twice a day. It's mild purgative. Given for 2 or 3 days only.
Then Liquid
Pathyadi Kwath is given 1 tbsp with equal water before meals. For a month.
Along with above liquid two Ayurved avalehas are given for licking: 1. Brahm Rasayan 1 tsp, 2. Chyavanprash (simple) 1 tsp - both twice a day. If sugar levels are raised, avoid these avalehas.
Very light food. Not much spices. Do not eat food if not hungary. You will start feeling change within a week. But report after taking for 4 weeks.
Do deep breathing for 5-10 minutes. Have fresh air walks.
It will help you 100%. Do not forget to thank HCM. Now cheer up pl.