I have had two resections. Did you have it laproscopic? If you did your healing time will not be as long. Rest, take your meds. I was on Flagyl and cipro after both my resections but the new med post surgery is Flagyl and Imuran but I have reactions to Imuran. Hope you are healing well. Take it slow, don't be eager to eat, start out liquids and or ensure,then light foods, bland and easy to digest. Sometimes digestive enzymes help with heavier meals , since now you dont have the full capacity now to do it on its own. B12 subliminal ones, and Calcium and Vitamin D3 in proper amounts.
Drinking water helps too, slow, and no straw, causes bloating. Keep us updated and let us know how you are doing. Big hugs!