Muscle gains symptoms and conditions

I have been on Winstrol (oral form, 2x25 mg per day) for two weeks now, out of a program of 6 weeks. Muscle gains are pretty good, much faster than expected, in fact. However, I have recurring headaches, cannot sleep well anymore (and I had never experienced that in my life...), and I put on a lot of weight (8 lbs, per week), possibly from water retention and muscle gains. I am on a fairly serious cardio program besides my usual strength workout (5 hrs a week of intense cardio), but I am really surprised not to lose any weight or gain any definition at all. I am just bulking up, which is great for martial arts, but not for wearing business suits.
As far as my sex drive is concerned, nothing to report so far. If I keep putting weight on like that for the remaining 4 weeks, I think I will not have to worry about my sex drive anyway as I will certainly not be able to score anymore ;-)
I have experienced some bouts of nausea, and I feel generally bloated.
My temper is usually fairly volatile, and it has not getting any better recently. I am not sure this can or should be attributed to Winstrol, though.

I've been taking a little more than somebody normally should. I'm taking 100-200mg daily orally. sometimes I'm taking up to 300mg!! I'm seeing exceptional results in muscle gain, with no bloating or moon face of course. The positives is good muscle gain, negatives: really bad depression, mood swings almost anything can irritate me especially driving around town, I feel i want to kick everyones ass, I have absolutely no sex drive, I took Test Cypionate before and this made my sex drive uncontrollable, winny does the opposite. I'm only taking winny and large amounts for dieting i have lost a lot of fat and im getting pretty big but most people would need to take large amounts like im taking to see results, i've noticed injecting works better for nitrogen retention (pump). Also some acne none on face just back. overall im gaining great muscle gains, but I really would rather take Test cyp, because i have severe depression because of winny and like i said my temper is really bad. If I didn't have a lot of self control right now I'd prolly hurt someone but one must remember to be mature enough while taking a powerful hormone such as winny.