FDA data https://www.fda.gov/food/resourcesforyou/consumers/ucm199525.htm suggests there is increased migration of melamine into food at temps above 160'F but seems to take time to accumulate. The level that leads to toxicity is estimated through risk assessment. It seems toxicity is rare but can be severe:
Products with melamine contamination above the levels noted in FDA’s
risk assessment may put people at risk of conditions such as kidney
stones and kidney failure, and of death. Signs of melamine poisoning
may include irritability, blood in urine, little or no urine, signs of
kidney infection, and / or high blood pressure.
No one here can tell you if you're going to get sick. If you are worried or see concerning signs/symptoms, see a doctor.