Hi kathleen,
I am 43 and had epilepsy all my life, I am currently on 1200mg tegretol,400mg dilantin and 2400mg nuerontin daily. I have been on keppra before and it really knocked me about ,couldnt think straight,co ordination was poor,feeling tired and I felt like a wieght was on my shoulders and my head in a cloud/fog, which I hadnt experienced since taking mysoline many years ago. It could be that the keppra is whats making you feel so tired . I have found the tegretol to be a stabiliser for me and is not too intrusive on my life. You said your docgtor has changed your dosage , are you seeing a family doctor or do you have a nueroligist ? A nuerologist is far more qualified and up to date about anti epileptic medications, and because of thier scope of knowledge ,has a better idea on what tablet to trial on you ,as not all tablets suit everyone.
Sleep is important when you have epilepsy ,a regular 6-8 hrs a night can help avoid turns as does staying off alcolhol which can be another trigger for turns.
hope this helps you kathleen, keep in touch and whenever you have a question im sure there is someone in the forum who willl try and help.
Good luck