Feeling Down 😔

So we went in for our 2 week check up today and learned that she only gained 1 oz from last week. My right breast has been sore and was difficult to feed her from so off and on I would pump that side instead of nurse. Well come to find out we both have thrush too. She sleeps very heavily which in the beginning I thought was a god send since my now 2 year old son was difficult to sleep train while breastfeeding. We have a plan to supplement with extra breastmilk and formula for the time being and I'm meeting with my local public health to help improve nursing. But the more I dwell on it the more I bring myself down for her lack of weight gain.