Just some background info -- I am a 20 year old female who has been running since I was about 7. I competed competitively in high school with some good results had a proper coach ect, so without bragging, I feel like running comes pretty 'naturally' to me, and have never understood people who don't feel comfortable running.
1 week ago I was doing around 100 kilometres a week, generally 15km a day around 5min km pace. Just cruising along comfortably, feeling great getting the endorphin rush, nothing too strenuous just out there for the love of it.
Literally in the span of one day, I find i cannot run 1km without stopping to catch my breath! and to make it worse this 1km is nowhere near the pace I know I can run at usually it is around a 7minute K! its ridiculous. I even went to get the covid19 test (which came back negative) just to rule that out despite having zero of the symptoms.
I generally just feel like absolute death when I run, my legs feel like lead. Also I've noticed I've clearly lost my 'natural' running style as I'm scuffing my feet/nearly tripping over sometimes when I'm trying to run (this one hurts the most because my natural running style is the seriously the one thing about myself that I'm proud of haha).
I have not changed a thing in my diet/lifestyle ect so am really struggling to figure out what has happened to cause this huge fatigue. My mental health has also declined massively because running is one of my coping mechanisms and probably brings me the most joy in my life so this is just really putting a strain on me.
I'm not sick, I'm still getting 8 hours of sleep/night, and the temperature is usually around 15 degrees Celsius.
Also I don't have health insurance, and am a student so don't really have the money to go to the doctors right now, so any help/ideas/suggettions would hugely appreciated
Please help!