Diphenhydramine hcl. abuse?

I am hoping a real doctor will answer a few questions for me concerning diphenhydramine hcl. abuse.I recently stopped using it.I am now 29 yrs. old and for the past 14 years I have been taking between 1250 -1800 mg. per day.I have stopped abusing it about a month ago after I had been having serious problems just walking up and down a flight of stairs.I was having chest pains,shortness of breadth,memory loss,erratic heart beat and more.The last time I had checked my blood pressure while abusing was 156 over 109.Since I have stopped using I have also read that it can cause the blood to thicken and arteries to harden,eventually causing heart attack.I have a daughter now and would like to stay alive to watch her grow up.What kind of damage to organs (kidney/liver/heart) do you think I may have and how extensive might that damage be.I will see a doctor soon,but for now I would just like to have an educated guess from a qualified professional.Also ,when I do go and see a doctor,what kinds of tests should I ask to be done?FOR THOSE OF YOU OUT THERE THAT MAY READ THIS AND ARE USING OR THINKING OF USING DIPHENHYDRAMINE HCL. TO GET A HIGH,DON'T BE STUPID!!!!YEAH,IT IS CHEAP AND CAN BE BOUGHT NEARLY ANYWHERE.BUT I AND MANY OTHERS ARE ONLY LUCKY THAT WE HAVE NOT KILLED OURSELVES ABUSING THIS KIND OF DRUG.YOU MAY THINK IT IS FUN NOW,BUT AFTER 14 YEARS OF ABUSING IT,I CAN HONESTLY SAY THAT THE PROBLEMS IT WILL CAUSE LATER IN LIFE ARE NOT WORTH IT.i DON'T CONDONE THE SALE OR USE OF WEED,BUT YOU WOULD PROBABLY BE BETTER OFF SMOKING A JOINT OR SO EVERY DAY,AS LONG AS IT IS NOT LACED WITH PCP OR WHATEVER ELSE.YES IT CAN/WILL CAUSE YOU TO HALLUCINATE IF YOU TAKE ENOUGH,AS WELL AS MAKE YOU FEEL LIKE YOU ARE ABOUT TO DIE.IF YOU ENJOY BEING ALIVE,THIS IS NOT A DRUG TO BE ABUSED.MANY PEOPLE HAVE DIED ABUSING THIS AND MORE WILL IN THE FUTURE.DON'T BE STUPID,AS I HAVE BEEN.