Could a TSH level of 5.69 cause pain to be felt worse? I get abdominal pain and it can be quite excruciating. I take Zantac (ranitidine) 150 but it doesn't help.

Not the thyoid. That TSH is almost normal. Increased pain sensitivity is not really a feature of hypothyroidism. I suggest you consult your doctor about the abdominal pain, and also evaluate whether your thyroid is functioning normally. Assuming your free T4 is normal, this may be something to just watch, or maybe your thyroid is in the early stages of failing.
Perhaps. Being hypothyroid (= hi-tsh) can cause abd pain, can decrease energy levels, can increase sensitivity to pain, and several other undesirable things. See your dr. To have both addressed.