Re: temperature of 97.2
your body doesn't stay at a constant 98.4 all the time. It warms and cools, not a significant change, but it does change. In addition you never take your temperature the same exact way every time.
Is there a reason you are taking your temp every day?
If you are dizzy and weak it would likely be blood pressure, not enough water, maybe not eating enough...or lack of iron or something like that. But again...keep in mind...we don't feel exactly the same everyday. If symptoms persist...then you should look for a cause, but once in a blue moon...it's normal.