I got a little lazy over the long weekend (4 days for me) and I latched/pumped less often. dragged the intervals to 5-6 hours (used to be 4). I could pump about 200ml (both boobs) every session before. now I can only pump between 70-150ml per session! left boob also feels bruised at the bottom. help! should I intro formula? baby is 7-months old and on full bm so far.