Weird pattern of symptoms?

My husband and I have been at it every weekend, especially since he works hours away from home and doesn't come back during the week. For a couple months, now, we have been moving and making it a point to eat better, but I'm only gaining weight. I'm also not hungry, in fact nauseous, but forced to eat due to low blood sugar (fruits). I do have a stressful job, but it has never been bad enough to make me stop eating. Any suggestions?