Was admitted to the local General Hospital for suspected pneumonia, combination of house purchase, job change, working overtime, not eating right meant I hadn't been looking after myself but was still training hard.
Basically the body said "no more" and I crashed big time, couldn't breath, couldn't sleep etc.
Had a full work up: chest x-ray, thoracic MRI, cardiac EKG, full blood count, exercise stress test, CT scan from head down to abdomen, arterial blood gases, repeated ECGs, admitted for 4 days, IV antibiotics etc
Despite abusing my body during my 20s with party drugs and being on and off gear for 10+ years now all they could find (apart from the pneumonia obviously) was an elevated B12 level....they asked about steroids but I don't think they checked hormonal levels as it wasn't relevant to the illness, I was on 1200mg test/week and 50mg Anadrol/day when I went in and liver and kidney functions were normal...the high B12 could've been Anadrol as it was originally developed for anemia and B12 is a treatment for this, I don't know the science but maybe it metabolizes in the body??
Anyway, maybe I was lucky but stick to basic tried and tested compounds, keep the doses sane and you should be ok!