Hello @joy5877 and welcome to the NETs support group on Mayo Connect. I'm pleased that you found this forum, so that you can have support and encouragement as you deal with this rather rare diagnosis. I see that you had a lot of pain after the shot, however, I also see that you had a PET scan in the ER which showed a small blockage. As you may know, blockages can also produce severe pain. Blockages are very common after any intestinal surgery.

I will request that this post be moved to a discussion group that was started by other members who take Lanreotide injections. You will find lots of members there who have experienced side effects, of different types, after their first Lanreotide injection.

You might also be interested in reading the following discussions:
https://connect.mayoclinic.org/discussion/does-anyone-else-get-bloating-and-sharp-abdominal-pain-from-nets-or-la/
https://connect.mayoclinic.org/discussion/diet-restrictions-with-lanreotide/
What type of surgery and other treatments have you had since you were originally diagnosed with NETs? How long ago was your surgery and your original diagnosis?