I just started rebuilding and I'm 2 for 2 in successfully making a new coil/wick on a Vivi head. I used 32g A1 Kanthal and cheesecloth. Vapor production was slightly less than stock heads, flavor was surprisingly good and throat hit was meh. The one thing I noticed instantly was that my head didn't feel right. It's hard to describe but it's like lightheaded, almost like a headache is coming on too. What could be causing that and does this happen to you?