What Causes Numbness In Finger And Lump On Perineal Area?

Hi, I have been very stressed lately & my skin feels quite strange like my blood needs cleaning..I have also had a numbness in my little finger, I have been to the Dr & he thinks it maybe a trapped nerve, I also have found a lump on the perennial area which have had examined & Dr says it s a cyst ... I feel badly run down , but my skin just doesn t seem right... I m awaiting results of blood tests for thyroid, blood sugar & iron... Can you shed any light on my skin problem.. ? Thank you