Paxil take its full effect at the second week of been taken. All this symptoms you're feeling are "normal" that means your body is getting used to it. Anyway, Paxil use to higher your blood pressure
and hearth beat, so It will be good for you to go on a routine medical check for your pressure
and heath rate in case of some tachycardia or hypertension, if so, you will have to take some light meds to control this secondary effect of paxil.