I feel your pain bro! I have had the EXCACT same problem from bulking. I tried everything, but the only thing that worked was CITRUCEL. You can get it at Wal-Mart in the pharmacy section.
It cleared me out in about a day and a half.
Hope this helps;)
those lumps you are talking about are normal. I used to get them all the time, they only go away when you are done juicing. Try not to inject into them.....it can really hurt.