I'm glad you are feeling reassured now. Aren't you glad you asked the question!!

Unfortunately the "low supply" myth gets perpetuated every time someone thinks it has happened to them. I joined a play group when DS was a bit older and later found out every mum in the group "ran out of milk" at 3 months. All of them! What a pity I wasn't in the group then to let them know they weren't running out! I guess the problem is one mum thought she had run out, so when the next mum got to the same stage mum 1 says "oh, that's what happened to me, I had run out of milk and had to stop bfing" so mum 2 stops too etc! It's really quite sad that good information is too hard to come by.