Hey, what's up people,
So, I'm a 25 y/o male and I just started running for the first time in 6 years, I was training to get into the para's from a young age so my fitness was expectedly rather good, my 1.5 mile time was 8:42, however I could not qualify for any branch of the military due to mental issues at the time, obviously being told that crushed me and sent me spiraling, I started smoking, drinking all the rest, I quit all that a year ago now due to lockdown and started trying to regain that fitness, I started slow and eased into it and have been running every day, the problem lies with the fact I've been diligent with my nutrition and training yet I still cannot even lightly jog for more than 2 minutes without gasping for air, I walk until I can jog a little more and continue to push myself yet a few metres down the road and I'm dying again, my 1.5 mile time is now 19:23 at it's quickest and I know I can honestly walk that quicker, I just don't understand exactly what is happening, I can cycle 100 miles at 15 mph comfortably, swimming is easy and weightlifting is a passion of mine they all require a good level of cardio so I'm stuck as to why I seriously just cannot run anymore.
Seriously any advice? Help? Please?