Feeling ill from burnout, anyone else relate?

I've been doing A LOT recently (work full time, went to the zoo and a cafe at the weekend, preparing for a surgery in April), and my body is definitely getting more run down. When I burn out I seem to get a lot of physical symptoms, mainly inflamed throat, struggling to swallow, inflamed glands, sore back, inflamed back/neck muscles, no appetite but big craving for only sugar, headaches, the list goes on. My worst burnout was before I knew I was autistic, and I had to go to hospital. They just gave me Codiene and some heavy sleeping pills, it was mainly rest that helped.

I wondered if anyone else gets bad physical symptoms from burnout?