i definitely need a Doctor

So, this week's Doctor Who. It got to about half way through the episode and I thought that I'd got an after-image of a flash of light in my eyes. No. Turns out it was the start of a migraine. I've never had a migraine before and it freaked me out - I asked my mum at one point if David Tennant really did just have one huge eye or if it was just my vision (FYI - it was just my vision, David Tennant actually has two huge eyes). Everything turned into a Picasso painting and then I lost all my peripheral vision in my left eye. I was at my mum and dad's this weekend and luckily (or unluckily for her) my mum has migraines and so realised what was going on. Sod's Law - my vision returned to normal at about the end of the episode (and then the headache started). Needless to say, I need to go on the BBC iplayer to rewatch it all.

Can I take my body back and exchange it for a new one that works?