I got bruises on both my arms next to my
Blood tests such as red blood cell size, hematocrit and ferritin
Since you are having bruises on both arms next to elbow area and have hemoglobin deficiency the cause of anaemia should be found out.
I would advise you to do further blood tests such as red blood cell size, hematocrit and ferritin
If the cause of your low hemoglobin is iron deficiency anaemia then these blood test will come out as abnormal
Depending on results you can take iron tablets on an empty stomach.
However, because iron tablets can upset your stomach, you may need to take your iron tablets with meals.