Headache behind right eye is it migraine

My sister had Typhoid then a UTI in March, April beginning. After that since last 10-12 days she has been getting a pulsating headache behind her right eye. The pain is unbearable for her. Also at times while sleeping she feels that her right arm goes numb. She also has developed a distaste towards bright light & loud sound. Her RTPCR came negative thrice, CRP & d dimer values were normal, chest x-ray clear, so that kind of rules out Covid. During her Typhoid treatment she was given medication of Norflaxacin which later on in her urine culture showed that she was resistant to it. She was given this for 2 days via IV. Could it be a side effect of the medicine? We don't have anyone in our family with migraine history. How to know if it's a migraine? Please help us. For last 2 months we are very worried for her.