What do you do when you are feeling like someone has hit you with the ugly stick?

For the past month, my self-image has plummetted. Ok, so I had a mastectomy, but it's not like I woke up to no boob - if the ppl who have seen it are anything to go by, it's an above-average looking reconstruction...it has a good shape, and you can't tell at all when I've got my clothes on.

So why do I feel so hideous - all over - now, when I am starting to get my energy back and working on re-entry into 'normal' life? Why has my distress over my breast leaked out to cover my legs arms torso hair face skin feet??? And more importantly, what can I do about it?

PS Kelly I looked at the Byron Katie vid about 'why do I hate my body' and TBH it didn't make any sense to me at all. I just couldn't see where she was going with it.