Medicaid.

So , I have Medicaid and know that my daughter will get it for a year after she's born. my address on my Medicaid stuff is at my moms in a different county. ( Grayson county ) but I live with my boyfriend in Lamar county. she told me to not any of my addresses and my daughters addresses down in Lamar county because if I do that I'll lose my Medicaid and she won't get it. which makes no sense because I live in Lamar county not Grayson anymore and so will my daughter. she told me to keep my address here but use the Lamar county one as a mailing address. is that even possible ??? I don't want her getting my mail for my daughter and my stuff because I won't be down to ever get it and she'll fill anything that needs to be filled out and won't even tell me because she thinks I don't know what any of it is. I don't know what to do !!?