No special diet is required after a laparoscopy. It's also not unusual for you to have not had a bowel movement yet but, you should try to increase your dietary fiber (oatmeal, vegetables, fruits, etc) or take a something that will help you become regular again such as Citrrucil or Metamucil or something of that nature.
You can resume your normal activities after a week (or as tolerated). As long as you are feeling well, you can go back to work in a week also. Your doctor will probably tell you all of this on Friday.
Use a small pillow by holding it against your incision as you sit or get up from a chair and in and out of your bed - this really helps.
As for the small bubbles.... If the incision itself is blistering, you are probably having a reaction to the bandaid or there is too much moisture on your wound. Remove the band aid, make sure the area is dry, then just place some gauze over the incision using a paper tape to hold it in place. Concerning the incision over your belly button, change the bandage if it is wet.