Constipation can be due to many causes.They include slow passage of digesting food through any part of the intestine like irritable bowel disease, diet low in fiber, over-use of stimulant laxatives (e.g., senna, castor oil, and certain herbs), hypothyroidism and hyperparathyroidism(by raising the calcium levels in the blood), intestinal pseudo-obstruction, Hirschsprung's disease, Chagas disease,colon inertia(nerves and/or muscles of the colon do not work normally) and pelvic floor dysfunction(the muscles of the lower pelvis that surround the rectum (the pelvic floor muscles) do not work normally).
Can you identify any of them?
Extreme fatigue can be due to stress,lack of proper sleep,improper diet,anemia, low blood pressure, diabetes,depression and narcolepsy.
In my opinion,you should get yourself tested for diabetes,Hb deficiency(anemias) and throid disorders.But first of all it is important to consult a physician and discuss the above stated possibilities with him.
Hope it helps.Take care and pls do keep me posted on how you are doing or if you have any additional doubts.
This all started to happen a month after I had jaw surgery. I was on a liquid diet for one month. Than a week after being on the soft food diet this all started to happen. It still shouldn't of been happening this long