Sulfonamide symptoms and conditions

I am so thankful for this site. I thought maybe it was just me. For one, I am allergic to Sulfa. My doctor knows this, as does my pharmacy. Still, they give me Lisinopril with Hydrochlorothiazide which you should NOT take if you have a sulfa allergy. From day one, I started with anxiety, agitation, nausea and what felt like a racing heart - though my pulse was normal. Day three I called the doctor and they said this was normal as my body "adjusted" to the medication. It has been over two weeks and the same thing keeps happening. I tried taking the meds at night to hopefully sleep through the side effects but no - it just kept me awake. I put another call in today and have yet to receive a return call from my doctor. I hope the doctor calls me and NOT the front desk girl because I have a lot of questions and concerns. Other symptoms I have been experiencing since I started Lisinopril are sever muscle cramping last for over 24 hours, dizziness, heavy chest/racing heart beat, restlessness and less frequent urination. For a 37 yo female who has to "potty" constantly, even throughout the night, going once in an 8+ hour period is not normal! The worst side effect though is definitely the anger and agitation. I feel like I am going to burst out of my skin or die banging my head against the wall. Last night I tossed and turned for 2 hours in agitation. I thought I would surely have a heart attack from the stress. Oh yeah my BP has NOT dropped at all (tho it fluctuates on or off the meds) on the 20 mg dose. Go figure.

I hope that I can get an answer from anyone or doctor
who can tell me that why doctors still use Levaquian on prescription even if Levaquian has such a serious side effect to some patients. Is it the best antibiotic medicine and the most efficient one among those new generation of antibiotic?
I have Sinusitis and Chronic Pharyngitis, I have used Amoxicillin and it didn't work for me.
My ENT doctor let try Levaquian. But I am allergy to Clindamycin and Sulfonamide. In other words, I am very sensitive to medicines. Therefore, I am afraid of taking Levaquian. (I have not tried it yet). But I like to know if I must take it or in other words there is no any other medicine that I can use for my Pharyngitis.

Emanuel