Hi, having the same problem with my LO, she won't take a bottle yet though, and she's 14 weeks. She's off the chart, though she started at 6lb 10.5oz. The HVs really worried me at first but I got a second opinion from an NCT Breastfeeding Counsellor. Now I have calmed down a bit - I'm tiny after all - the GP is on it, just to rule out any problems, I'm sure she's just a small baby.
I'm feeding every 1.5 - 2 hrs now as I really want to get her weight up and it took me about a day and a half for my milk supply to ramp up to meet this demand. I have to make sure I eat loads so I'm not exhausted and depleted. I don't want to feed this often so would appreciate anyone elses view on feeding this frequently, I don't clock watch, I seem to have sussed her hunger cues and this is how she seems to want it. I worry she's not getting the hindmilk enough, but 99% of her poos are yellow (not green as lack of hindmilk can cause).
At the moment I'm not doing a dream feed as she has been impossible to wake, but as soon as she accepts a bottle I will give her a formula one at 10pm so it is not affecting my supply. Don't think there is anything wrong with your supply, there's not. They can make you feel so rotten with their offhand comments.
So, ejk80, hang on in there, we're in the same boat. I get so cross with the HVs sometimes, they are all over the place.