I have been taking Amitriptyline(7 days) which is also a Tricyclic like Clomipramine.
Having the same side effects, but going to stick it out as they are not as bad as the side effects that I have had from other classes of Antidepressants.
Try Fibogel for the constipation, it gets you moving.
It is helping me with my obsessive thoughts and my anxiety in general.