I don't know why things don't show up on blood tests, but many folks on this very forum complained all the time that they feel horrible, but their blood tests come back normal. Usually docs have to do tests such as a cscope or SBFT to see the inflammation, at least thats what my docs do.
As for signs of a stricture or narrowing is nausea, feeling full very fast, constipation, and when things get bad you will have cramps (bad pain) that come in waves much like labor pains. If that starts happening you are probably at least partially obstructing. Hope that helps a little.
Gail*Nanners* Co-Moderator for Crohns Disease & Anxiety/Panic
Crohn's Disease for over 34 years. Currently on Asacol, Prilosec, Estrace, Prinivil, Diltiazem, Percoset prn for pain, Zofran, Phenergan, Probiotics, Calcium, Vit D, and Xanax prn. Resections in 2002 & 2005. Also diagnosed w/ Fibromyalgia, Osteoarthritis, & Anxiety. Currently my Crohns is in remission, but my joints are going crazy!
*Every tomorrow has two handles. We can take hold of it by the handle of anxiety, or by the handle of faith"*
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