on and off for about a year i keep getting sore spots/ lumps dont know what they are.. on my labia majora on the same side. right now i have two lumps there one is painless just a lump and the other is sore red/ yellow and painful. id say my labia has doubled in size. usually they go away within a couple of days. im really worried it could be an old sti like syphalis thats gone untreated? or am i just being paranoid. has anyone ever had these?