23yr old female. night sweats every night, extreme fatigue, bruising very easily on legs. ongoing for 6 months. basic bloodwork normal. suggestions?

You need a full exam: The symptoms you are discussing can be unrelated or more likely a sign of significant disease. Temp fluctuation give night sweats so does the weather we are having recently hot one night cold the next but you add extreme fatigue and easy bruiseability. This now makes things a bit more ominous and can be signs a medical cond. I would see internist and hematologist