epilepsy
"I was diagnosed with epilepsy when I was 12 years old (I am now 27). I have been on lamotrigine and topirimate (separately) in the past, and they both worked to control my seizures.  

This year My neurologist has changed and she wanted me to try keppra but I was happy on the topirimate so I said no until I had a grand mal seizure. However, the seizures have got worse since taking the keppra plus the side effects are awful. At the start I was so tired I spent all day asleep. After the dosage has increased to 3000mg per day I have started to get mood swings, anger, depression, irritability, plus suicidal thoughts and have become a completely different person - I never used to cry but now I don't stop."