Clare,
Yes. In addition to withdrawing from nicotine, we also withdraw from the other chemicals in cigarettes. Furthermore, because of the effect of smoking on physiological responses like blood flow, heart rate, blood sugar and blood pressure there are also many changes going on in your body in that respect.
If symptoms persist or worsen, it is always best to consult a doctor. Better be safe than sorry.
Danielle
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The SSC Support Team