<s>[INST] i am 18 and 5 ft 8 and i been feeling ill for like a week now i feel sick when i eat and am light headed when standing up even drinking is becoming a problem then i get really bad neck and back pains. im usually very healthy but now i feel terrible! [/INST] Hello, I have studied your case. There is possibility of cervical spine muscle spasm. For these symptoms analgesic with muscle relaxant and neurotrophic medication can be started consulting your doctor. Till time, avoid lifting weights. You can consult physiotherapist for help. Physiotherapy like ultrasound and inferential therapy will give quick relief. Gradually neck exercises can be started after relief. I will advise checking your it B12 and it D3 level. I will advise you to MRI cervical spine for better diagnosis. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care. </s>