Hidden causes of continual weight gain?
I am at my wits end. I went to my nurse practitioner for a routine physical about a 15 months ago. She weighed me in at 183. A few months later I went back for a sore throat and I was up to 188. About 2 months after that I came down with a sinus infection. I was 192. Then I had my annual physical. 198. She said she was getting concerned about this, so she asked me to come in every other month to get checked out. She takes my weight, temp, and BP every time. It keeps getting worse. Here are my weigh ins:
Feb 2009: 198
Apr 2009: 201
Jun 2009: 205
Aug 2009: 208
Now she's really alarmed. My weight keeps going up very consistently. I know for a fact that I will be over 210 next time. Breaking 200 was really embarrassing. She's ordered blood tests, and nothing ever comes back wrong. I really haven't changed my eating/drinking/exercise habits any. I did turn 30 about 2 years ago, and I wonder if it's just a metabolism slowing down kind of thing? The funny thing is, I don't look really fat. Honestly. I know a gain of 25 lbs has to show up somewhere, but I don't have stomach rolls or anything. Just a little wider and softer than before. It feels like most of the gain has come inside of me, and in arms, legs, etc.
But now it's reaching a critical point. She said that if I hit 215 I would technically be considered obese even though I don't necessarily look it. I asked about medication, but she said she won't prescribe it until she finds the root cause. At my last visit, she actually said she thought she heard a slight heart murmur with her stethoscope, which really scared me, so now I have to see a cardiologist too.
Does anyone have any idea what could be behind this big weight gain?
Thanks for your help.