I have studied your case .
Due to compression of nerve root
there can be heaviness in head.
I will advise you to MRI cervical spine
for better diagnosis.
Another possibility of vascular obstruction , for this clinical examination may be required.
For these symptoms analgesic
and neurotropic medication can be started.
Till time, avoid lifting weights. You can consult physiotherapist for help.Physiotherapy
and interferential therapy will give quick relief.
I will advise to check your vit B12 and vit D3 level.
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.