Three days ago when using the restroom, I noticed a mass about the size of a pea had formed about 1.5 inches away from my anus. Felt like it was bruised but left it alone. The following day, it grew to the size of a Japanese peanut but discomfort followed. Swelling spread forward and reached my anus. Today, it swelled up a little more but now it brings pain when using the restroom, when coughing and seating and an additional pea sized mass formed between the original point and my anus.what can it be?