Hello,
Welcome back to icliniq.com.
I really wonder that the file you uploaded I can see in console, mean complete dynamic images. I also reviewed the report of CT scan you uploaded (attachment removed to protect patient identity).
Thankfully everything thing seems normal. The bowel wall and diameter of its lumen appears unremarkable. There is one 1.1 cm lesion in the liver, since it is not an contrast enhanced images (intravenous contrast was not given), cannot comment on this. Otherwise, it does not appear concerning to me. So do not worry about it.The colon appears filled with stools, however, it seem normal, and there was no stools (fecalization) in small bowel.
Well skeletal muscles (muscle over our joints, hand, legs) can cause pain, but there are typical features of the pain which arising from the muscle. Such as the pain can be easily brought up while movement of that particular muscle, and it can vanish when particular muscle is in rest or relaxed. Person often feel pain/tenderness on touching the muscle.
There is other set of muscles in the bowel called smooth muscles. They even can bring pain when overstretched such as in abdominal distension, and can generate pain when ulcers/inflammation are there.
I do not know whether you feel signs of skeletal muscle pain, but yes, the smooth muscle in your bowel can cause this discomfort. The condition is called irritable bowel syndrome or IBS. Since you have constipation as a main feature it is termed as IBS-C (constipation).
Well the IBS is itself a huge topic difficulty to elaborate in one page, but this is a disorder with recurrent abdominal pain lasting for three months and the pain resolves after passing stools and given no other explanation for the pain suggestive of IBS. I think that would be easy for you to understand. So basically it is condition of hypersensitive gut.
The treatment is rather straight forward and has three steps.
1. Symptomatic relief-like relieve of constipation with fiber in diet or otherwise, taking plenty of water, exercising regularly particularly swimming, maintaining weight, and avoidance of unnecessary antibiotics. Avoidance of FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols) diets. The FODMAPs are the diets which produces excessive of gases, they should be reduced or possible completely be avoided in meals.
2. Medicine use. Since your pain very well resolve with the Isphagol and fiber, I am not deemed to prescribe you any medication for now. Because they will add side effects and cost as well. But yes, I can consider you a medication for regular use if your symptoms does not improve with the step. The common medication for this is Mebever 200 mg once or twice daily or tablet Librax one table twice to four times daily before meals. Unfortunately, these both are anti-spasmodic which relaxes the smooth muscles of the bowel and can cause constipation (again a reason I am not recommending you now).
3. Low dose anti-depressant medication is believed that our bowel and stomach secrete large amounts of nervous hormones which cause pain, diarrhea in some, constipation in others. In order to control the excess of these hormones leading to unbearable symptoms, low dose antidepressants can be prescribed. But again I would see if you just improve with step 1 of the management.
So to summarize, your CT (computed tomography) scan is fine. You likely have irritable bowel syndrome. The first step of management discussed above is the preferred and most beneficial method for controlling your symptoms.
Below I write down some investigations, you can get it done in the coming four weeks (not urgent). And once available share with me the reports. I believe they will be normal, but just to be on the safe side.
I hope this helps.