You have been told by your dr that you haev low vit B12 had tried taking a B but get very bad headaches also the shots But they made sick what can do?

Here are some alternatives and additional strategies you can consider:

1. Sublingual Vitamin B12: Try taking sublingual vitamin B12 supplements, which dissolve under the tongue and are absorbed directly into the bloodstream, bypassing the digestive system. Look for lozenges or tablets specifically labeled as "sublingual."

2. Different Vitamin B12 Formulations: Some individuals respond better to different forms of vitamin B12. Consider discussing with your doctor or a registered dietitian about trying alternative forms such as methylcobalamin or adenosylcobalamin.

3. Dietary Sources: If you are not severely deficient in vitamin B12, you can try increasing your intake of foods rich in vitamin B12. Some good sources include:

- Meat (especially liver, kidney, and beef)

- Fish (especially fatty fish like salmon, mackerel, and tuna)

- Dairy products (such as milk, yogurt, and cheese)

- Eggs

- Fortified cereals

- Nutritional yeast

4. Intranasal Vitamin B12: Intranasal vitamin B12 sprays or gels may be an option if you have trouble taking oral supplements or experiencing side effects. They deliver vitamin B12 directly through the nasal mucous membrane.

5. Consult a Specialist: If you are still experiencing side effects from vitamin B12 supplements or shots, consider consulting a registered dietitian or a specialist in nutrition or hematology. They can help you determine the best approach based on your individual situation.

6. Investigate Other Causes: Your headaches and nausea may not be directly related to vitamin B12. Underlying medical conditions or allergies to other ingredients in the supplements or shots could be the cause. Discuss these symptoms with your doctor to rule out other possible causes.