If it is from the lamictal, it can be very serious and you need to tell the doctor who prescribed the lamictal and ask him or her what you should do. You shouldn't make changes without talking to the doctor, but you need to talk to the doctor about it.
Lamotrigine (Lamictal)
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“We should always pray for help, but we should always listen for inspiration and impression to proceed in ways different from those we may have thought of.”
– John H. Groberg