I am not getting confirmation that your adrenal situation was triggered by bowel cleansing. It may have unleashed an emotional response of some sort that could have affected an existing adrenal balance, but not caused it. There msut be something else going in your life that you may not have throught about, non-physical in nature. Anything that makes you feel insecure anxious or upset. Fear of food can be rooted in past lives, and lead to allergies in current lives. There are ways to deal with this aspect of allergies (see my website for Sacred Santemony).
Given the adrenal weakness, certain foods such as sugar or starch, can easily overstimulate the nervous sytem. The period in the night when the hot flashes occur is the time when the liver works at full speed. The liver is the main heat-generating organ. Any congestion in the liver can lead to overheating of the body, especially from the waist up.
I sense that most of what is bothering you is less purely physical than it is emotional/spiritual. Fear of things, foods, situations, your own power, etc. strike me as the most prevalent ones.