i have a series of doubts and questions which need to be answered. Some of them might sound very amaturish, but please bear, as I dont have any other source to clarify. I really appreciate all the help.
I'll take a stab at answering, but bear in mind ANY answers anybody gives you will be OPINIONS. There is not one "right" way to do any of this.
Q1: I play heel down; now, should the hammerhead always be touching the batter side when not in play? eg. while doing a long snare roll.
I don't think so. After all, the next time you need to play your bass drum, you'll need to let the beater come back towards you before it strikes again. While you'll see much heated debate about whether to hold the beater against the head immediately after the impact (a technique I often favor), once you've gotten the sound you want, to me it makes more sense to lift the beater off the head, so that you're ready to strike again.
Q2: I am pretty short, around 5'7" and my toms are mounted on my bass drum. I need them to be closeto give a nice comfortable rolll, but then the bass drum comes close aswell which then spoils my my right legs angle on the pedel (remember i play heel down) what do i do here ?
Prioritize your setup. For most drummers, the most important components of the kit are the bass, snare, and hihat. Get those EXACTLY where you want them, then fit the rest of the kit around that. It's not that big a deal to reach a little for your toms, because you probably don't play them nearly as much as the bass, snare, and hat.
Q3: What is the recommended position of the HH from the snare. I keep them at a 10'O clock to 11'O clock psitin and about 3 inches above the snare, but sometimes (rarely) my sticks click (collide) while going fast, how do I avoid this ?
HERE is an informative thread on that topic.
Q4: I sit pretty high on the throneas I find it much comfortable that way and my snare is slightly low and tilted towards me. I strike the snare with the tips of my sticks, is this corrct/okay, if not thats the right way ?
If your legs are higher than your snare, you'll have a hard time playing rimshots (a stroke where the stick simultaneously hits the rim and the center of the drum, yeilding a loud, gunshot-like sound most drummers use for high-volume playing).
Q5: HOw do I tilt my cymbal on the left so that i can strike it at the same exact place with both hands. ? Somehow this has not become possible, or am i striking it wrong with my left hand .?
Most drummers have their left cymbal directly in front of them, on a straight path from their body to the snare, up to the crash. Although the front of the bass drum is the front of the kit from the audience's perspective, your "center" is actually some point between the bass and the hihat, to the left of where the bass drum is pointing. That's where most people put their left crash. It shouldn't be hard to get it equidistant from each shoulder, putting it within equal reach of each arm. Experiment with different heights and angles, but think of yourself as facing the cymbal, instead of the cymbal being to your left.
Q6: I go pretty fast on the HH, and Being a right handed, my right hand comes in to play more often than the left, this must be the case with everyone i guess... but at then end of an hour or two or practice, my right hand gets more stressed out than my left. is this normal ?
Sounds logical, doesn't it? If your right hand is playing more than your left, it's likely it will become more fatigued. Get some snare drum books and spend some time practicing ONLY snare drum (or practice pad) to ensure that BOTH hands get a good workout.