You have received a lot of great advice from other members here! It can sometimes be difficult to tell the difference between symptoms and cravings. Often things can be considered to be both. Are you using any other quit aids to assist you (patch, Champix, etc.)? If you are using any other aids, be sure to ask your doctor about possible side effects. This will also help you tell the difference between symptoms and cravings.
You may experience some occasional dizziness during your quit. You are now absorbing more oxygen through your lungs than your body has been accustomed to. This dizziness may come once or twice a day for a few days. It usually lasts only one or two seconds, and is gone before you have time to do anything about it. How long will this last? The first few days after quitting.
Tips to help: Take extra caution in the common physical things you do. Practice standing up or moving at a slower pace.
If you have a symptom that persists or seems worse than you expected, you should immediately consult a doctor. Its possible that your smoking has been masking symptoms of some illness, and when you stop smoking the symptoms abruptly become noticeable.
The feeling os being "spaced out" is indistinct but an annoying symptom is linked with carbon monoxide withdrawal. It gives a sense of being in "another dimension." It can include changes in distance and space perception, a floating feeling, and a total lack of concentration. Remember that carbon monoxide is a deadly poison - it is a good thing to get out of your system.
How long will this last? The first few weeks after quitting.
Tips to help: Plan your workload to account for your temporary lack of concentration. Avoid additional stress during the first few weeks.
You mentioned that it is difficult because you are sitting and waiting. Can you think of anything you could do to distract yourself? Astrofan has already offered you a number of great suggestions! Any of these you would like to try?
Members, any other advice for Jay on symptoms and cravings?