Extreme Fatigue, Chronic Sleepiness.

Hello, I am a 29-year-old male from Michigan. I have been feeling extremely fatigued lately with absolutely no energy. Every day, I have a chronic urge to sleep during the afternoon. It doesn't matter if I'm ready, watching TV, working on something, or otherwise, I need to stop whatever I'm doing and take a nap. This has been constant for a year. Beyond that, my fatigue affects me when I'm doing trivial/routine chores around the house, like putting away dishes or vacuuming. I'll sweat pretty profusely. Recently, my son has a playpen that I needed to attach the mattress to. The mattress has four velcro slips that go through matching holes in the playpen. Doing that was quick and easy, but I was left sweating and out of breath. This all began around the time I started having anxiety attacks a year ago, but medication (40mg Celexta) has taken away the anxiety and left this...so it's not a side effect.