hi i have just joined the site too! am puzzled because after being on byetta for 2 years was changed to victoza in may. (no delay, one day byetta, next victoza) am having severe side effects, headaches, lethargy, and what i believe is hives, and this is so very sore and irritating!! see the doc tomorrow for hopefully an ointment that will work this time. my legs an ankles are like balloons, thanks for tip of drinking lots of water! has anyone any idea what to do next? i feel i want to go back to byetta and twice a day injections. nuisance ,but there you are!!