I have some experience with this compound, good and bad.
90mg/day is overkill dude. Sounds like you're trying to "stretch" it's intelligent use into something unintelligent for extra gains, which you likely will not be able to continue with.
I've run it at 100mg/day, for a very limited time. THis drug gives a nice strength boost, nothing wild, and can improve vascularity, not much of a size enhancing drug.
YOu ramp up to the dosage you're running, and you will increase your bp considerably mate.
You will also become a low back pump victim and that isn't pretty either.
If it's real, you will realize this all on your little lonesome soon enough.
If you want to take good advice, drop down to 60mg and ride the tbol train out on that and no more.
If you're looking for more than a mild improvement in strength and the other usual gains we're after, then you should plan out a much better cycle. If you have to stick with orals, do some more research and find the right compound. Tbol doesn't lean you out to any significant degree, so remember that. Primo and anavar would be the only orals that CAN help with fat loss to any tangible degree, with winstrol being a close third in that category.
Let us know how you feel when the headaches and back pumps start crippling your workouts, then you can let us know how that's working out for ya?!
Don't take a mild drug and over use it out of ignorance.