First off, Mike, I was told my doctor that the PH is urine is a fairly meaningless measure of one's PH. The vast majority of these alternative health people know nothing about what's truly involved with the body's PH balance.
If you take supplemental Vitamin C, for instance, your urine ph will likely go down to 6. If you eat an alkaline diet for some time like you are doing, the urine's PH will be higher (Alkaline). But neither of these actions are altering your actual blood acidity the least bit, Mike. If you're that nervous about things, just ask your doc to test your bicarbonate level. If that's normal, you're fine.
The only true dangers there are when it comes to "PH" is dehydration/overhydration, the bicarbonate, alkaline phosphate, calcium, phosphorus, and sodium levels (Which are all part of standard metabolic panels), and something called Ketoacidosis (Exclusive to diabetics), as well as lactic acidosis (Lactic acid is Goliath compared to David (General acidity). Terminal cancer patients are really the only ones that are capable of having an acidic body, Mike.
Any panic attacks you are experiencing that could be related to your diet changes to some degree (Everyone's ph moves a little bit throughout the day at certain points, and you'll experience some metabolic effects from that, but that doesn't mean you've become "Acidic or alkaline."
Bottomline, my friend-Relax. The sooner you get your mind off of all of these health issues, the better you'll feel all around. And your health will improve at that point above and beyond any diet or pill could do for you as a result. Trust me.)