HI My son has recently had a urinary infection (he seems to have them recurrently), he is six years old, each time he gets one the only symptom is a massive change in his behaviour. He has been taking Amoxycillin 3 times a day since Tuesday however he has began complaining that it hurts when he urinates, his behaviour has gotten even worse, he is excesisvely thirsty, extremely hungry and is complaining that he feels shaky intermittently throughout the day? Just need some advice