Big Jimmy, your first reading of 150/100 is slightly up, but should be discounted.
The lower reading (in your case the 2nd reading) should be the one recorded. (see my post of 6/12/07).
I know of no known natural remedies to lower bp, other than exercise, lose weight, low salt etc, and cut down other risk factors (diet/smoking etc).
Treatment of hypertension can cause erection problems in a minority of patients, but this can usually be cirumnavigated by a change in medication.
Of course you've got to let the quack know about the problem in the first place!