Hi , I am 20year old male,  a few days ago I had noticed two or three small black lines on my middle finger. I was worried but didn't think too much , now I notice a very light black line on my right foot toe nail. I am worried if this has anything to do with endocarditis or any such issue. First middle finger lines I could ignore but then again this toe line has made me really anxious. Also note My lifestyle for past three years has been pretty inactive. I have noticed small random aches near my chest before many times. During this coronavirus situation I am worried and i don't know if it is required of me to visit a doctor at this moment. Pls help , Thank You. I have attached finger and toe nail pictures.