Hi @baa
Lacosamide or Vimpat was for me the worst AED I have taken, giving me many side-effects, including the ones you have mentioned. I got into severe depression with this medication.
How long have you been taking it? If you have been taking it for more than 3 months (side-effects will not disappear), I would in your place talk to your doctor and change it to another medication. My doctor did not want to change it after taking it for almost 10 months and feeling very bad, so I changed doctors at that time.
What kind of epilepsy do you have again? I remember you mentioning it, but can not recall it now.
Wishing you better days!
Chris (Santosha)