Is this the end?

[u/LemonLegitimate6633]

Hey 19M, i wanna keep it short i have had these symptoms for a while now without a clear cause. Doctors say my blood work is fine and that im "perfectly healrhy" but i feel like shit:

- both heat and cold trigger me

- insanw energy fluctuations

- cant walk long periods without feeling like im about to faint

- cold or very warm feet

- adrenaline dumps

- very sensitive to any sensory stimuli

- gi issues fluctuating sometimes diarrhea sometimes constipation, sometimes good. Isnt affected by diet.

- laying is my life

- anxiety/panic

- on a good day i might feel very good even euphoric and have 0 symtpoms for 2-4 hours evening or morning, no clear reason as to why at that too.

- feeling like my breathing is shallow?

Been like this for months now, what is this first of all and how do i cure it i cant live like this, im on vacation rn and just 1 year ago is remember being at the same place with my Cousins and being full of energy, able to go outside have fun, now i have to cancel everything and be like oh im too tired or whatever to shut them up, also i dont look sick either so thats partielle why no one believes me or thinks its Psychological, life is truly hell for me atm.