That's wild how similar our experiences are! Ultrasound also cleared my liver, which was a big relief. Would love to stay connected and see how your medical team approaches this. Could swap what we learn along the way?
amazing you're losing so steady on 2.5—that's you doing the work with the meds as backup. you've got room to move up. don't stress about worst-case stuff. it happened to me at 15mg—stopped losing and hunger came back. had to start exercising even though it was rough.
stopped working doesn't mean plateau and regain though. i don't see evidence of real weight comeback once dose is maintained. it hits a set point and holds there. the set point seems dose-dependent, and low-and-slow doesn't match the trial data on upper limits.
Lipase elevation is worth flagging because it can precede pancreatitis even when symptoms are absent. GLP-1s generally improve triglycerides along with other metabolic markers, which is the typical pattern. The lipase piece warrants a direct conversation with your prescriber.