I had cool sculpting Tues and Wed last week. I have had a lot of swelling and pain around waist. Have I got gastric issues?

Coolsculpting is a relatively superficial treatment that has no affect on internal organs.  Sometimes if a person has an abdominal hernia, then treatment over the hernia would not be recommended to avoid worsening the hernia from the suction involved with the treatment.  That would be the only gastro-intestinal issue to be aware of.  Swelling and discomfort are common after the treatment, and could last a couple of weeks.  Some minor tingling and discomfort may even last 3-4 weeks.  These symptoms are from the inflammation in skin and fat that are induced by the treatment.  This same inflammation is part of the fat reduction process.  I'm sure your Coolsculpting provider would be willing to address your symptoms and concerns, and should evaluate you if any of your symptoms persist.

What you’re experiencing at this point is completely normal for one week post treatment. The CoolSculpting treatment is very superficial in that it only targets pockets of fat close to the surface of the skin. The excretion of fat is a natural elimination process and involves the lymphatic system. Your gastrointestinal system is not involved in this process. The actual elimination of fat cells has not occurred at one week post treatment. This will slowly occur over 2-3 months post treatment. The swelling and pain around the waist is normal at this point, but should be mild to moderate. Patients typically report the most significant amount of pain 7-10 days post treatment and it should slowly start to resolve after that point. If you are experiencing severe pain then I would recommend contacting your provider. In the meantime, avoid restriction clothing and try ice packs to the site for 15-20 minutes at a time.