Over the last two weeks my cardio has gone to shit.... I am continuously getting a real bad stitch on my right side just under my rib cage ..... Even walking at 5/6 on the treadmill can cause me to stitch...

Can anyone give me a reason as to why this might be happening???

Currently on week 11 of cycle

500mg week test
750mg week deca
12.5mg Ed aromasin
Just started 2 days ago 40mg winny tab ED
10mg Nolva daily

Multi v
Milk thistle
Q10
Spirulina
Vit c