My partner was diagnosed as bipolar many years ago and takes lithium daily; in the 7 years we've been together, I've never seen a sign of it. However, recently, he has talked of not feeling himself, had trouble sleeping for a few consecutive nights, had a racing heartbeat, and most recently is waking very early in the mornings and heading out to work (up this morning at 4.30am!). When I asked him this morning what he was doing up so early he got very defensive and agitated. I told him I was beginning to worry that he may be relapsing but he didn't want to hear it and was resistant to the suggestion he go to his GP to get checked over. He is self employed and has a big job on right now which has been problematic and I know he is stressed out about it. Am I over-reacting to normal stress symptoms, or does this sound like it could be a relapse?