hey... just 2 quick questions

1. Im currently using 2iu a day of jin, been on it for about 2 weeks now. I mega lethagic during the day.. i understand this is normal. Im just wondering how long until this will go away?

2. Also where i do my shots i can feel a big lump under the skin... which stays around for a few days.. is this fine?
Theres no noticable mark on top of the skin like no red welt or anything.. it just feels a little swollen under the skin.. this fine?

-cheers