Term depression symptoms and conditions

My third day taking lowest dose of Lamictal. Have been taking Adderall and Cymbalta with no negative effects. I expressed to my doctor, that I am still sleeping a lot and sometimes don't even feel like getting up to taking my meds. When I do take them, I'm pretty great for about 6 hours, then right back to the couch.....
My doctor told me to stop the Cymbalta and start taking Lamictal. The first day I was my usual self, second day: dizzy, cloudy head with bad headache in temples. Weird throbbing in head. If I turn my head to fast, it feels like I need a extra second for the rest of me to catch up. I've been in bed, lifeless for the past two days. Don't feel that I can do much with my head like this. My hip bones and lower back ache.
My main concern is "Will these side effects subside?" I'm not Bipolar. I suffer from long term Depression/Anxiety triggered by abuse and trauma.
Please if anyone out there has felt similar effects from this drug, let me know. I want to give the drug a chance, but also would like to hear other's experiences.