Can my hairloss be due to Lamictal, Lamotrigin? What is the term of my hairloss?

Ive been on lamotrigine for one year,my hair got really dry and damaged before i cut it, tons of hair was falling of and the hair was in really bad shape. Since my haircut my hair has thinned out so much. I lose pretty much in the shower.I have had a poor diet for years pretty much.Is this something that can happen out of poor diet all of a sudden? I rather think its the lamotrigin. What type of hairloss do i have? Genetically i shouldnt be having a problem. I have a huge receding hairline also