Hi,
There can be many reasons for pain lower abdomen -enteritis, colitis (intestinal infection) and of course
urinary tract infection. Urinary tract infection is quite common especially associated with fasting and
dehydration. Your doctor has prescribed you these medicines for your infection. I feel that you must complete the course of medicines. Minor side effects like weakness and
nervousness can be due to antibiotic or even due to infection in the body.
You need to stop the medicine if there are some severe side effects like
dizziness, confusion, skin allergies, severe
abdominal pain and vomiting. Since none of these symptoms are present, you should continue the medicine. Make sure that you drink plenty of water 2-3 liters per day. Take a good balanced diet. Relax and don't worry.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Milinda Gupta, Internal Medicine Specialist