I believe all emotions, feelings and physical reactions are valid during those early days and weeks of sobriety.
Alcohol numbs our pain receptors and those to our central nervous system, take away the alcohol and everything internally is re-booting again so its only natural we will feel the effects of that.
Dont worry too much IPNAngel, its been so long since most of us have felt a "normal/healthy" state of being that we no longer know what that is. So I would suggest that you try to go with the flow for a little while and starting a new job is not to be underestimated in terms of its impact.
Keep pushing through