Can't believe I've done it! Argh 

Had dc3 by section 18 weeks ago and had the worst moment ever last night whilst attempting the plank at yoga I saw my totally totally deformed tummy through the neck of my t-shirt iykwim!
Have about 10lbs to goal weight but am so soft and squishy everywhere..
I'm terrified now. I'm not fit, at all. I'm going to die aren't I? Oh Lordy...