I'm a fit healthy 47 year old recreational cyclist with a steady low weight that has had to stop riding with much fatigue without doing any exercise at all

Symptoms since 2020 are a general need for a sleep after 4pm, maybe an hour if I can, I also struggle to drive and not fall asleep over 75 mins

I hydrate well, sleep well, consume virtually no alcohol.  It's all so odd.

I wake up unfreshed and just as tired as when went bed.

But, moreover , I have the feeling of exercise-induced bronchoconstriction EIB, of riding or doing exercise at 70-90% max heart for 5/6/7 hours on end just trying to ride 5 mins in jeans odd days.  Everything is a drag as I'm on a low ebb run down feeling and stopped riding 4 weeks ago and nothing changed. 

I feel like I've been drinking the former night with that ethanol at the back of throat breathing out after drinking as a student when not drank for weeks.

I've also had a cold for 7 months that doesn't have phlegm or other cold symptoms other than ocassional coughs that last a week and feeling very run down.   Leg muscles are numb and dead, like lactic acid, just dead legs.    Like I've ridden 6 hours each day for a week on a week cycle holiday and I'm not doing any exercise at all for weeks.

My GP I've had blood tests for just said it's an Upper Respiratory Infection and after 7 months feeling like I'm hung over an run down I just don't buy it's a cold.  Or long-Covid.

I wonder if it is cancer where I can go if my GP isn't showing much interest.  Thanks