Can you catch gastroenteritis from somebody who caught it from you?

I've just recovered from 3 days in hell with what I'm guessing was a form of gastroenteritis.
My girlfriend just came down with what must be the same thing and i'm wondering if I should now be immune to it or if I can catch it back from her as easily as she caught it from me.

Hi Moochaser

Here are some ideas to heal the issue.


Causes
In addition to bacterial and viral infections, gastritis can also be caused by poor diet, food allergies, nutritional deficiencies, alcohol, smoking, and chronic stress. As mentioned above, various commonly used medications can also cause gastritis, especially NSAIDs. In addition to aspirin, other NSAIDs that are linked to gastritis include Advil, Clinoril, Feldene, Ibuprofen, Nalfon, Nuprin, Orudis, Oruvail, Relafen, and Tolectin. In severe cases of gastritis, internal bleeding can occur due to thinning of the lining of the stomach and/or intestines.

Caution: If you experience internal bleeding and/or experience blood in your stool, seek immediate professional medical attention.

Quick Action Plan for Gastritis

1. Avoid all sugars, refined flour products, and carbohydrates, milk and dairy products, processed foods that contain preservatives and artificial sweeteners, alcohol, hydrogenated and trans-fatty oils, as well as foods that are common allergens.

2. Emphasize organic, fresh vegetables and non-citrus fruits, organic grains, as well as organic, free-range meats and poultry and wild-caught fish.

3. Drink plenty of pure, filtered water throughout the day.

4. Miso soup and strained vegetable broth, made from cooking down a variety of organic vegetables, are healing and easy to digest, making them especially valuable for any digestive problems.

5. Certain herbs have anti-inflammatory properties, which can help repair the lining of the stomach and intestines. The best herbs for this are Echinacea and goldenseal, aloe vera, cayenne pepper, chamomile, licorice root, and slippery elm.

6. Soothing baths two to five nights a week can help to relieve symptoms of gastritis.

7. Therapeutic juices include raw cabbage juice by itself, or mixed with either carrot or celery juice; raw potato juice; wheatgrass juice; carrot, spinach juice; carrot juice; carrot, beet cucumber.

8. If you smoke, stop, and avoid exposure to secondhand cigarette smoke.

9. Learn how to effectively cope with and manage stress; deep breathing, meditation, Qi Gong and other calming and grounding movement techniques are very supportive.

10. If you are currently taking aspirin or other NSAIDs, consider replacing them with safer, more effective natural remedies.

11. Nutritional supplements include vitamin A, beta carotene, vitamin C, and zinc, taken with a multivitamin/multimineral formula. Essential fatty acids, especial omega-3 oils, are also recommended, as are bismuth and the amino acid L-glutamine.

12. Allow yourself to receive emotional support to help you embrace some of the common underlying issues identified with Gastritis, such as abandonment, anger, disappointment and rage, which often settle in the gut. Seek out a therapist or other skilled practitioner that can guide you through emotional healing work.

Best of health to you