Is an adult drinking from a baby bottle normal?

I have a baby bottle that i drink from at night sometimes. I understand, that it is meant for babies, however 1) I do love winnie the pooh and 2)it makes the liquid come out slower. I have health problems, so I am always on the hunt for healthy alternatives, and drinking liquids from a baby bottle means that I am drinking the slowly meaning my stomach is not chugging them down. I am 18 years old and a female. If it helps, I also have a teddy bear and pacifiers I use when I am stressed and they help out a lot.