These medicines are not responsible for the high blood pressure
95% of patients suffering from high blood pressure don't have any cause for it and such type of hypertension is called as essential hypertension
There are various risk factors associated with it which taper thought to be the cause for high blood pressure like old age,lack of physical activity,consumption of more salt,consumption of alcohol and smoking
,genetic structure etc.
You must consult a doctor and get investigated properly and start anti hypertensive treatment.
Reduce weight and salt consumption and do regular exercises.
Once the blood pressure is controlled,bleeding per nose would settle.