The tendency to bruise means increased bleeding tendency due to a systemic cause. If this is the case, you might be losing blood in other forms and through other routs. This results in a degree of anemia, being a female in the reproductive period, losing blood monthly in the days of your cycle will increase your symptoms. Anemia causes headache, easy fatigability and sleeping tendency.
I recommend you as a start to do complete blood picture CBC and blood film.
Systemic causes of increased bleeding tendency include:
Scurvy (Vitamin C deficiency)
Vitamin K deficiency
Chemicals such as Aspirin
Idiopathic thrombocytopenic purpura
Blood tests include CBC with blood film, Bleeding time , prothrombin time and prothrombin concentration are the commonly requested tests in such cases. Specific tests and images are requested accordingly.
I advise you to:
Avoid drugs that increase bleeding tendency like Aspirin.
To be checked by your physician for proper medical care.
This answer does not substitute for direct medical consultation.
Dr. Safaa Mahmoud.
MB BCh, MSc Internal Medicine. MD Medical Oncology.
PhD Experimental Medicine and Biochemical Science.