Often when people quit smoking they may find that medications that were adjusted for them while smoking may be altered in effectiveness once quitting. People on hypertensives, thyroid, depression, blood sugar drugs, and others may need to get re-evaluated for proper dosages once quitting.
The first few days quitting can be very difficult to determine, what is a "normal" withdrawal and what is a medication dosage issue. But once through the first few days, if a person who is on medications for medical disorders finds him or herself having physical symptoms that just seem out of the ordinary, he or she should speak to the doctor who has him or her on the medications. Point out to the doctor that you have recently quit smoking and started to notice the specific symptoms just after quitting and that they haven't improved over time. The doctor should know the medication and potential interaction that not smoking may be adjusting for and which way the dosing may need to altered.
Treating many conditions is a partnership between you and your physician. The doctor needs your input to effectiveness of any treatment, whether it be by physical measurements or by verbally communicating how you feel while under treatment. The treatment for one condition though is your primary responsibility. The condition--nicotine addiction. It is by no means a minor medical issue, it is in fact probably the greatest controlable health threat anyone will ever face. Afterall, what other lifestyle issues carry a 50% premature mortality rate? Not to mention all the other crippling side effects that go along with long-term smoking. The treatment for this condition is your primary responsibility. To effectively treat smoking for the rest of your life simply remember to never take another puff!