Re: Constantly asking for milk
I agree, you don't have to set limits. But at this age, I think you can set limits and that they can understand them. Especially if all you want is for them to wait a little while so you can get other things done. I also agree with Tracie that trying to avoid saying no to nursing can help you avoid meltdowns about it. I used to try and say, "yes we can nurse when we get home/after I'm done cooking dinner/when I'm finished talking on the phone" or just skip the question altogether and say, "how about a snack? do you want something to drink?"
It is definitely a prime time for molars and if that's what's going on, nursing helps with her pain so I don't think you're setting a bad precedent by nursing frequently. When the pain is gone it's likely she'll stop asking so often. It could also be, if she's only just now learned the sign, that she's practicing this new skill. I remember when my daughter realized she could communicate with signs she went NUTS with them for a little while.
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”