Baby refusing right boob! Help!

cherry

So for the past few days baby girl has been nursing for a shorter period on my right boob and regularly popping off and on. She will suck for a few seconds then pop off then repeat. Today however shes point blank refusing that boob! Ive heard of a nursing strike but never for just one side?! Im so confused and dont know what i can do 😖 anyone have any ideas?