That is an excellent question and one that is best answered by your primary care doctor
or other medical professional. There are several causes for the symptoms you have described but since there is not enough information to make a hypothesis for what is the cause of these symptoms in you, it is best that you are evaluated by your primary care doctor who will be able to evaluate you and obtain a history and physical examination. It is not clear how low your blood pressure was from the information provided, but it is not uncommon that you may have low blood pressure if you are young and are physically fit. The tiredness may be normal as well. On the other hand, there could be an underlying cause of this tiredness and low blood pressure such as low blood counts (anemia
), dehydration, medication usage, or thyroid dysfunction. Any of these issues can cause the symptoms you are describing and so it is advisable that you are seen by a primary care doctor who can work with you to find out what is the cause of the symptoms you have and then decide upon the appropriate treatment which might include medications or supplements.