Not to worry - a biopsy is primary - it's the only way to ease your mind!!!! Freaking will not help you.. Been there - it actually makes matters far worse.on a mental level. You need answers - and doubling in size is definitely call for a biopsy. It could very well be an infection... But better safe than sorry. Don't blame yourself for waiting... Self recrimination is a useless emotion you can't live a life riddled by what if ( I too have been there - ) what's past is past nothing can change it -It's what you do now that is most important.

Good luck today!!!