My LO is going through a phase where he keeps opening and closing his hands and when I nurse him, one of his hands is tucked around me and he KEEPS TICKLING ME. At first it was cute but I hate being tickled and everytime he does it, I have to fight the urge to run away screaming. As is, I squirm like crazy and then he gives me an annoyed look saying, "Please stop moving, Mama, I'm eating."

I can't really change my hold on him - he's 6 months old but BIG (20+lbs) so I basically just sit him in my lap and cradle his head. Any suggestions on taming the tickle monster?