symptoms of nicotine withdrawal-

i haven't had a cigarette for almost exactly four days. i think that, as of right now, it's been about 96 hours exactly. anyway,Herbal cigarettes, i've been experiencing some weird symptoms and am not sure if they are common for nicotine withdrawal.i've had- headaches- difficulty focusing- nauseanow, those are what i've had that are normal, as far as i know,quit smoking, but i've also had- tingling hands/feet/face- anxiety- sore-ish throat- random little pains throughout my body, pretty much everywhere- loss of appetite (mostly due to nausea)is this all somewhat normal, or do i have something to worry about?