I shot in my glute last thursday, 2cc`s, been going back and forth between left and right side. Was at last part of the bottle last thursday, week ago from today. And i still have a lump at the injection sight. Its small and painless but its there. Normally the muscle would only get a hard spot for 2-3 days after injection, but last 3 shots its slightly swelled but would go away after the 2-3 days, but this time its been swollen for 7 days now. Reason to worry?