Have Crohns for 40 years, in my case there is usually a cause to increasing symptoms:
Diet - If I stray and have a one sip of wine (just one sip) from my wives glass..BANG or if I eat some new food that has a mildly residue of spice in the mouth...BANG. So I am very strict about that and these episodes may be once-twice a year.
Mental State - Problems at the office usually with difficult people. These are more subtle, the problem may occur today, then again with the same person next week, in any of these episodes there is no direct spasms that night, its a slooow build up of resentment. If you have situations that you don't see the light at the end of the tunnel, this has a cumulative effect on my Crohns. So I stayed away from high stress jobs and when possible, people in my personal life that create problems.
You need to look deep within yourself to see subtle things that may be happening that overall "constrict" your body. Then you need to change your Mental State to a "will overcome attitude". Don't lie and mope around as to how bad you feel. Sit up and take deliberate rhythmic breaths that empower you, make a resolution that every hour you will get up and accomplish something around the house, even if it is for five minutes. YOU ARE STRONGER THAN THE DISEASE, the rest of your body is fine, summon every arm, leg, muscle of your body to overcome this, have that attitude 24 hours a day. Everytime you need to discharge at the bathroom, clean yourself with resolve, I have just expelled toxic stuff from my body, I am 1% better for now. If you cramp massage yourself with resolve, take a hot sitz bath twice a day for 15 minutes, feel the warmth healing and sustaining you. YOU ARE STRONGER THAN THE DISEASE. When you are really down have a steady stream of thoughts that you will conquer this episode, one hour at a time.
I am not kidding you with the "YOU ARE STRONGER THAN THE DISEASE", you have a marvelous reserve of power that allows you to reframe each situation, you need to dwell on that power and not let yourself feel hopeless.
Only YOU can do this, and that is the beauty of it.