Yep, I do tkirk.

I just wanted to give you a bit of info on the hug, first:

"What Causes the "MS Hug?"
It is caused by a lesion on the spinal cord and is technically classified as a neuropathic pain called a “paresthesia,” which refers to any abormal sensation. The sensation itself is the result of tiny muscles between each rib (intercostal muscles) going into spasm. These muscles have the job of holding our ribs together, as well as keeping them flexible and aiding in movement, like forced expiration.

What Does It Feel Like?
Like many MS symptoms, the “MS hug” feels different for different people – it also feels different in the same people on different days or at different times of day. It can be:

- As low as the waist or as high as the chest; rarely it can be felt as high as the shoulders and neck
- Focused in one small area (usually on one side or in the back) or go all the way around the torso
- Worse when fatigued or stressed
- Present in “waves” lasting seconds, minutes or hours or can be steady for longer periods of time
- Described as sharp pain, dull pain, burning pain, tickling, tingling, a crushing or constricting sensation or intense pressure
- How Severe Can It Get?

Some people experience difficulty breathing or painful breathing, so severe that it is often perceived as a heart attack or panic attack."

http://ms.about.com/od/signssymptoms/a/ms_hug_pain.htm

As far as feeling sick, this can be as a result of the pain (nausea, exhaustion from it, etc.) or directly because of the spinal lesion itself. The way I understand it, if our lesion is in T-6, it will often affect our stomach in particular (and can cause the symptoms of anything listed below that level too), as per the following:

"RE: Potential damage; based on lesion location

SPINAL COLUMN

C1: blood supply to the head, pituitary gland, scalp, bones of the face, inner and middle ear, sympathetic nervous system, eyes, ears
C2: eyes, optic nerves, auditory nerves, sinuses, mastoid bones, tongue, forehead, heart
C3: cheeks, outer ear, face, bones, teeth, trifacial nerve, lungs
C4: nose, lips, mouth, Eustachian tube, mucus membranes, lungs
C5: vocal cords, neck glands, pharynx
C6: neck muscles, shoulders, tonsils
C7: thyroid gland, bursa in the shoulders, elbows, ulnar nerve

T1: arms from the elbows down, including hands, arms, wrists and fingers; esophagus and trachea, heart
T2: heart, including its valves and covering coronary arteries; lungs bronchial tubes
T3: lungs, bronchial tubes, pleura, chest, breast, heart
T4: gallbladder, common duct, heart, lungs, bronchial tubes
T5: liver, solar plexus, circulation (general), heart, esophagus,
stomach
T6: stomach, esophagus, peritoneum, liver, duodenum
T7: kidneys, appendix, testes, ovaries, uterus, adrenal cortex, spleen, pancreas, large intestine
T8: spleen, stomach, liver, pancreas, gallbladder, adrenal cortex, small intestine, pyloric valve
T9: adrenal cortex, pancreas, spleen, gallbladder, ovaries, uterus, small intestine
T10: kidneys, appendix, testes, ovaries, uterus, adrenal cortex, spleen, pancreas, large intestine
T11: kidneys, ureters, large intestine, urinary bladder, adrenal
medulla, adrenal cortex, uterus, ovaries, ileocecal valve
T12: small intestine, lymph circulation, large intestine, urinary bladder, uterus, kdneys, ileocecal valve

L1: large intesine, inguinal rings, uterus
L2: appendix, abdomen, upper leg, urinary bladder
L3: sex organs, uterus, bladder, knee, prostate, large intestine L4: prostate gland, muscles of the lower back, sciatic nerve
L5: lower legs, ankles, feet, prostate

Sacrum: hip bones, buttocks, rectum, sex organs, genitalia, urinary bladder, ureter, prostate

Sacral Plexus: Forms the sciatic as well as other nerves that go to muscles, joints and other structures of the legs, knees, ankles, feet and toes

Coccyx: rectum, ****"

(Sorry, don't know who to credit for this info ...).

Cherie