New pain 8 weeks post tummy tuck. What can I do?

I would not be too concerned as it is only a small part of the wound and not uncommon following a breast reduction. I would recommend protecting the wound with steristrips and a occlusive dressing and refrain from any physical activity. This would ensure the wound stabilises and is able to heal.

Not everyone is a candidate.  Limiting factors include the patients weight, BMI, other health problems and the distribution of the 'donor' fat.  You should seek a PS who is comfortable doing these procedures in timely manor and in a safe environment, ie, a properly credentialled facility.  

Thank you for your question and congratulations on your surgery. Without examining you in person it's difficult to say why your incision is sore. Your description of bits of pus coming from the incision suggest that there may be some sutures that are "spitting." This occurs when ...

You definitely do not want your compression to be too tight as this could cause more problems.  It should be snug enough to help reduce swelling and avoid fluid collections but not cause you pain and discomfort. 

It sounds like you are doing very well.  Congratulations!  My patients typically return to a desk job in 1-2 weeks, so you are ready when you are ready.  I advise that you move about every 60-90 minutes to avoid swelling and to keep the blood flowing through your veins.  

I don't think 5-10 lb weight gain would cause abdominal pain. That's not much weight and your tissues will stretch a bit. There is likely something else going on. Endoscopy sounds like a good plan!