I'm on a clean bulking diet, 40/40/20 3200 cals. I'm gaining strength, but my weight is pretty stagnant at 155. Should I just add calories until I start gaining again? How many calories should I add at a time and how long do I wait to see if I'm gaining again before I add more?

I was thinking of bumping it up to about 3500 and giving it a week or so, and then see where I'm at.

I got on the scale for the first time in about week today and I was sure I would be up, but instead I was down 2 pounds. I look bigger, so the loss is all fat and water (probably mostly water). I don't understand how you big guys do it. I can barely stuff down 3500 cals a day.