Burnout causing physical illness

Is actual physical illness resulting from autistic burnout and overwhelm a real thing?

Every time I start a new job, I come down with illness within a couple of weeks, usually a viral type thing, fever, shivering, chest pains, sickness, that sort of things. 

I always get very overwhelmed starting a new job and experience severe crashes. Last few jobs I have taken on while battling a pretty severe burnout

I know stress can make you ill but overwhelm and burnout causing actual physical illnesses and virus is different. Maybe its cos my immune system is down from the destress I am experiencing? 

It would be really helpful to hear from other people who may have had similar experiences