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Seek immediate emergency care (call 999 or go to A&E) if you experience symptoms of a severe allergic reaction after a B12 injection, such as difficulty breathing, facial or throat swelling, widespread rash, or dizziness
Eggs, especially the yolks, also provide B12
References Bray, G
Many factors affect sleep quality, including stress, other medications, caffeine intake, screen time, and underlying sleep disorders such as sleep apnoea or restless legs syndrome
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