Aye, got chickenpox last February, aged 37! My kids had got it 2 weeks prior, and very kindly passed it on. I can honestly say that I have never felt so ill, including flu. It was a hellish 4/5 days of feverish trembling, high temperature, and of course the dreaded spots. It's generally more serious in adults.
Can't remember how long til I was running again, but it was a good few weeks before I felt up to it.
You have my sympathy...get well soon!