Memory Issues after series of grand mal seizures?

Hi, I am a 21 year old female who has been experiencing memory loss/ retrieval issues. I've always had not the best memory, but now in the past 4-5 months its gotten to a point where its negatively impacting my life on a daily basis; I can't remember things I've done with my friends, inside jokes, people I've met, what a movie I watched a month ago was about. Every day when someone says "Remember this happened.." It could have been years ago, or a month ago and I can never remember. It makes me want to cry because I am so frustrated and constantly find myself saying "Umm no, I don't, I have a bad memory." It's impacting my University career, I am struggling to remember things, and when I try to remember information I've learned in previous classes in previous years it just upsets me because I can't remember anything and feel like the past 3 years have been a waste. I've tried several different encoding and retrieval strategies I read online to help with memory problems but it does not seem to be helping. I have myoclonic epilepsy and sometimes experience tonic-clonic/ grand mals, that were mostly controlled by medications for years. I switched medications last september however after developing an allergy to lamictal,to keppra. My neurologist started me on a lower dosage and said he would need to raise it in the spring, but when I called to make an appointment, my neurologist had no openings until next January, and my family doctor would not raise the dosage either. About a month before or around the same time my memory problems started, there was a period of 2 months where my epilepsy got extremely bad. I was having tonic-clonic twice a week and was always exhausted, but after 2 months I decided to raise my medication dosage on my own because I couldn't function normally and no one would help me with my medication. I incrementally increased my keppra dosage of 250 mg twice daily to 500mg twice daily, and my seizures completely stopped within 2 weeks and I have been seizure free for about 3-4 months, but am still experiencing memory issues. I am thinking that these memory issues were caused by that period of time when I was experiencing so many grand mal seizures, but am concerned because it just seems to be getting worse despite being seizure free. I am wondering if I am on the right track, or if it could it be something completely different, I just don't understand why it's getting worse and not better, and the walk in doctor said it was not a side effect of the keppra medication. Does anyone know if that that spell of seizures could have caused damage in my brain, and if so will it get better? Or I'm wondering if could be something else? My family doctor just said to see my neurologist and keep eating a balanced diet, but my next appointment with my neurologist is January 2014, and I don't know what else to do at this point. If anyone has experienced anything like this, any advice would be greatly appreciated, thank you.