Gavin's trip to the doctor

So, we had Gavin's 15 month check up with his new doctor tonight. I was really anxious about going, because he is an "expert" on sleep issues, and I knew we were going to have to do what he said about Gavin's sleep. First, we found out Gavin's only gained 3 ounces in 3 months is basically off the growth chart. So, we're going to go for bloodwork to check his thyroid and kidneys, etc. And as for the sleeping issues and how he basically nurses all night and only wants to sleep while attached to me, he said we have to go cold turkey with weaning and do the cry it out method. I had this feeling that's what he'd say...but it's going to be so hard! We have to stick with it. I need a full night's sleep!!! So...we're starting this weekend. We need to wait until Jarrod won't have to work because I'm sure we'll be up all night!