Hard bump on the base of neck the left side with feelings of pinched nerves?
Sorry, I NEVER saw someone that had a pinched nerve in the neck and a 'bump' on the side of the neck that was the cause. You actually have two different things going on... I'll not discuss the 'pinched nerves' symptoms, since you didn't list them... there are just too many to try and list. The 'bump' is either a sebaceous cyst -- especially if you can "wiggle" it around-- meaning it's under the skin and not attached to anything. It could also be a lymph node. Those are off to the side in the back of the neck & at the hairline. I'll not go into all the 'normal' things that cause them to appear, from baby - to adult- hood, but I will caution you that if you find more 'lumps' under your arms, in your groin, please see your doctor --PA-- NP to make sure there is nothing to be concerned about...
What is the pain of the top of your foot from?
Without enough details it is hard to say. Click on this web page to better help. http://www.myfootshop.com/searchresults.asp?method=Condition&Value=Forefoot http://www.myfootshop.com/knowledgebase/
Would ringing in the ear have anything to do with a pinched nerve or pain in the shoulders and neck?
No... The nerve for hearing runs inside the skull to the ears and the nerves to the neck and shoulders run completely outside of the skull... There are a lot of things that could cause the ringing of the ear...: previous nerve damage from listening to loud music/sounds over a long period of time [usually in both ears], repeated rupturing of the eardrum from infections/trauma, Meniere's Disease... See http://www.menieres-guidebook.com/guide_detail.asp?gid=TL008&a=a&assoc=Google&keyword=menieresdisease