Hi,
Until we measure the temperature it is difficult to say fluctuating temperature. Normal body temperature on average is approximately 98.6°F. It's quite common, however, for body temperature to fluctuate 1°F one way or the other. This fluctuation can occur for a number of reasons. For example, if you're quiet and relaxed, your body temperature may drop a bit. But if you're active and racing around during the day, it may elevate to the higher end within the normal range.
Conditions that affect body temperature:
1.Drugs:antibiotics, narcotics, and antihistamines (to name a few)
2.Medical conditions - heart condition,
heart attack, cancer, leukemia, and Hodgkin's lymphoma.
3.Exposure to cold (low body temperature).
4.Shock (low body temperature).
5.Alcohol (low body temperature).
6.Drug use (low body temperature).
7.Metabolic disorders -
diabetes and
hyperthyroidism.
Until examination is done it is difficult to say what is the cause for fluctuating body temperature.
Andropause or
menopause may also cause this problem.
Hope I have answered your query.
Let me know if I can assist you further.