Are Medications Side Effects Worse Than What They're Treating?

I have been doing really good lately. I've been able to function pretty well and haven't had any bad thoughts. I've been crediting it to the medication. Then yesterday, I was teaching at school and felt light-headed and had blurred vision. I tried to take a step but was so weak I just sat on the floor instead. I had a student to go get the school nurse. By the time she came back, the homeroom teacher came to pick the class up... so thankfully none of the students saw what followed next. The nurse asked me if I could get up and walk to a chair and I tried but couldn't. She brought a rolling chair over and I sat down. She took my blood pressure and said it was very high. The assistant principal came in and said they'd get someone to cover the rest of my classes and that I needed to go home. She asked who I could call to come pick me up and then from what they said, I fell to the floor and passed out. They said I was unconscious for a minute or two. When I came to, I started having a seizure. Now, I had never passed out or had a seizure before. The a.p. then made the call to get an ambulance. When EMS arrived I was still seizing and by that time, I could not speak. They put me in the ambulance and they said I was hyperventilating. They gave me oxygen in the ambulance and I calmed down some by the time we got to the hospital. The doctors did chest x-rays and a cat-scan. The test results did not show any problems. All the doctor could say is "We're not clear on why you passed out or had a seizure." So they sent me home. I am still very, very, very weak. I'm thinking that it is the result of the combination of the 5 medications I'm taking which includes Lexapro fro depression and Buspar for anxiety. I have an appointment with my family doctor Monday who prescribed the medications. Now, don't get me wrong, like I said before I am a fan of medication for depression. If it can make me feel normal again, then I'm all for it. But now, I'm believing the side effects are catching up to me. I did my own research, which I'm sure the doctor will hate, but in the medications I'm taking, it listed that side effects could be the symptoms I experienced and some included fainting and even seizures. So how do we fix that? I hope the doctor knows. Cause let me tell you, I don't like these side effects I experienced yesterday.... I was scared to death... I thought i was gonna die. So are the medications side effects worse than what they're treating?