If no history of any injury, then kindly check your blood pressure. Usually subconjuctival hemorrhage resolve on its own.
Next Steps
1.needed a complete ophthalmic examination since it is recurrent.
2.check ur blood pressure
3.Do a blood investigation like BT, CT
4.lubricating eye drops will give you a relief.
Health Tips
1.do not rub your eyes
2.aviod strenous exercises, heavy weight lifting