This could be because low TSH levels slow down your metabolism, so your body is converting calories into energy (and heat) less effectively
K.DE Los ReyesT.NianC.AsadiA.et al (2010)
Xia Y, Wang Y, Cui M, Su D
doi:10.1053/j.gastro.2016.01.038 39
[1] [2] Patients should discuss perioperative management with their healthcare team, as these medications can affect gastric emptying and may need to be temporarily discontinued before certain procedures
Balancing the Risks and Benefits In clinical practice, the potential for mild digestive discomfort (including occasional heartburn) should always be weighed against the profound benefits Wegovy offers: Sustained, clinically meaningful weight loss: Patients in major studies achieved an average of around 15% reduction in body weight over 68 weeks, outperforming many other weight-management medications