Hi,Dear thanks for the query to HCM virtual clinic.
I studied your query in full details updated from you.I understood your health concerns.
Based on your query data, In my opinion ,You seem to suffer from Acute Furuculitis/As it has no opening or head to it,It could be Inclusion
Dermoid Cyst?/ or could be due to Femoral Hernia- as this also doesnt have opening to lump.As your lump is painful to touch and spherical, mostly seems to be early developing early acute boil / though possibility of Femoral hernia and Sebaceous Cyst needs to be kept in mind.
Second opinion form Surgeon and USG of the lump would resolve this issue.
Hope this would resolve your query and worry.
Welcome for any further query in this regard to ME.I would love to help you out.
Awaiting for any further query.
Wish you fast recovery from this intriguing health problem.
Have a Good Day.
Dr.Savaskar M.N.
M.S.Genl-CVTS -Senior Surgical Consultant