I have gone through your and can understand your concern.
It appears that you have the problem of vasculitis
problem at finger tips. Regarding your vasculitis - it is a simple phenomenon, if your bleeding time
, clotting time and platelets are normal then there is no need to worry. SO you can go for these tests to confirm the normalcy of the blood profile in relation to that.
I suggest you to take food containing plenty of vitamin C
in your diet which maintains good strength of blood vessels.