I will support [USER=13851]@madman[/USER] when he emphasizes how important it is to maintain a stable - no change at all - protocol for the first weeks you are on an androgen replacement protocol. That same advice is true anytime you initiate any change as you seek to tune your efforts. Change...wait...analyze your subjective response...test.
That said, you may well be undergoing some swings in temperament. Depending on how long you were hypogonadal, where your SHBG sits, the way you and your doctor designed your protocol, your emotions may be unsteady.