Floored

Whatever virus I have has floored me. 
I slept until mid-afternoon having gone to bed early. 
I walked to the local shops for meds and milk. I strolled back through the park as the sun was going down. The walk has finished me.
As usual entry is through turnstiles with security checks into the funfair. The whole area is sealed with fencing and sort of see-through banners. 
I am going back to bed early again tonight having phoned in sick for my night shift.
That's the first time I have done that in ten years. I must be ill.