It's my 11'th year with Crohns, I hated all the procedures, colonoscopy, sygmodoscopy, endoscopy, endless blood tests...blah blah blah.
Unfortunatley, or fortunatley, however you look at having these procedures done, they may find the smoking gun, or several smoking guns, or nothing.
Either way, the procedures appear to be needed, in the early years, later, I found that I could differentiate between pain levels and know I didn't need more procedures for certain flares.
"Go Lightly" my ass, theres a joke there somewhere, nice (sarcasm) prep for colonoscopy.
Anyway, more to your IgG question.....
Hell if I know, My GI has no idea why my levels are dropping, I posted a link a day back with all me blood test levels for IgG asking if anyone else had thse low levels to as a part of cohns.
After further researching I also found some links that showed continued use of CSS steroids, Prednisone, etc, these can lower you IgG levels.
I don't believe you said you were on any medications currently, so that seems unlikley in your case.
Although when reading online about possible fixing low levels, it said stopping CSS steroids may return IgG levels to normal.
Sadly there is so much they (the entire medical system) don't know about this disease, they can't really treat it effectivley. as evidenced here on these boards.
That being said there are also stories of people who have gone into long remissions with the right medications and diet.
As with all things, you can bring them up with your next GI appointment, my best advice when having these issues is to make a small list of your complaints on paper, bring it to the appointment, use them like bullet points, make sure you get as much out of an appointment as possible, cause if you have to make another appointment later, well we all know that could take days to a month depending on your health care system.
As for treatment, well seeing as my doctor is baffled, his only suggestion was to retest every 2 weeks, which is fine with me. So without him knowing what is causing it, then he can't prescribe a treatment. How important can antibodies be anyway right, I meant hey only fight bacterial infections in your body,I mean without them you might die from infection.......oh wait, that does make them kinda important eh...I didn't meant hat to scare you, just irony and humor that Doctors don't seem to think certain things are important, when all the reasearch you've done says it is.
So one wonders, is internet research always credible, is your doctors knowledge of your conditions always credible. I really loathe having to be my own doctor all the time, only to go in with all my research and have my Dotor say, "I disagree" end of story.
So go get tested, try and relax, I know that aint easy, I'm living proof, woke up at 4 am, been in and out of the bathroom for 3 hours and coming here for therapy.
But the truth is, I keeep my Doctor in-line sorta, I make him keep blood testing me when I get sick, and every time I get these wonky test results, which could mean nothing or something, yeah, that comes straight from doctors not me. Seriously these guys get paid to dole out wonderous tid-bits of advice like that.
The key is to breathe, relax, your going to get through this and find the answers, just keep on your Docs, speak your voice and make sure your heard, if you don't like what one Gi says, or even the GI themselves, see a new one.
Hrm got a little carried away there.