Sorry, but the answer to your question covers about 300 pages of medical text, and could be anything from pregnancy to a gunshot wound! Talk to a doctor, especially if you have these symptoms. The above poster is correct in saying that it could be a myriad of problems with your stomach. Stress is a high factor is stomach disorders; Ph level problem, many digestive disorders (can be corrected by diet and perhaps medication) ulcers; Enzyme problems; hormones, etc. We are not doctors on Answers.com so it would be best that you speak to your doctor about this.
headaches, dizziness, nausea, vomiting, stomach pain, loss of appetite and weight loss.
mainly just loss of appetite...
Could be poison. Needs Vet.
Potential causes of a ball in a dog's stomach include ingestion of foreign objects, such as toys or small items. Symptoms may include vomiting, loss of appetite, abdominal pain, and difficulty defecating. It is important to seek veterinary care if you suspect your dog has ingested a foreign object.
Stomach cramps, indigestion, diarrhea, hair loss, appetite loss, nausea, and unusual weight loss or gain are some of the common side effects of valproate.
They cause loss of sensation, loss of stomach contents and loss of balance, respectively.
Loss of appetite associated with the aging process.
Most people experience loss of appetite at some time or another it is when you have it more than 2 or 3 days to be alarmed....go here: http://health.discovery.com/encyclopedias/illnesses.html?article=3071
Abrtion or being hit hard in the fmales stomach
Alzheimer's can cause sleepiness and loss of appetite.
Fear is a physiological response that causes butterflies in the stomach. Fear can also cause sweating, loss of voice, and extreme shyness.
Loss appetite No special diet