Update: The flu, soar throat and fever are gone. As expected, it wasn't Lamictal related but it had the similar symptom as what's been said online which got me really worried.
Currently, I have rashes from sweating, on my chest but it's a heat rash since it tiny and didn't spread throughout my body.

If it weren't for the depression, I'd live medication free. But this is working wonders for me so far. My anxiety is miraculously gone too(it's really strangely good), and I'm only at 75mg. So yeah, even though its scary, I believe I'll be fine Thanks guys!