My Mane Is Musu And I Am 23+. First Of

My mane is Musu and I am 23+.
First of all English is not my mother language so please forgive me if I make any mistake.
My problem is, couple of week ago I was Walking and I felt week and suffocation but I continued walking after approximately 15 minut suddenly I felt very bad almost difficult to walk. My both legs was very week and it was difficult to stand, shortage of breathing. Then I called a texi and reached home.
I took rest and became okay.
I want to mention that I have gastric which is known as bloating stomach.
I talk with doctor and he gave me medicine without diaginoses.
But my friend told me those are the symptoms of mini stroke.
I need your help. Thankyou.