I think our quits are always very different, even for the same person who might quit a number of different times. Getting over the craving is only one aspect of smoking. I think the biggest battle is training our minds to function normally without smoking. That's what the real challenge has been for me anyway. The physical symptoms you mention can happen to anyone during the first month in particular. Those symptoms are almost too many to name and vary from person to person. The good news is that, given time, they all go away.
Getting the quit WELL established is Job 1 during the first months of quitting. How many months? Well, that too varies from person to person. For me, it was about 5-6 months before I felt pretty much completely "safe". Now, that doesn't mean I was struggling a lot during all those proceeding months - no! It just means that after 5 to 6 months, it would have taken a truly bizarre event to make me stick a cigarette into my mouth and light it up. I think you will find that the concerning physical symptoms you are feeling currently will start to resolve themselves fairly soon or at least start evening out a little.