so heres the problem. im a big dude so i got the back shock set really hard so it doesnt drop so much when i sit on it. front shocks are almost as stiff as they get also i just put now tires on it so im still riding at 10psi in the rear and 8 in the front.. i ride mostly dirt and stone roads with some trail riding. when i take slightly rocky trails this thing shakes me to death, like to the point it feels like i've pulled something in my arms for like 4 days. also when i hit the occasional small rock or tree root in the trail it damn near throws me off. is my suspension just set too stiff? tire pressure too high? or is it just always gonna be like that?