Hi Thank you for asking questions, fine u didn't told detailed history of it regards ur profession and nature of work.. but considering last 2 days only it will not alter u much, working in single position continuely by table works i usually because of cervical Nerve compression, musclar spasm some times u feel like that, Better now jus start with One muscle relaxant, I,e tab- zerodal -MR BD And TAB- nervigen -p (methylcobalmin+ pregablin) with mild oil massage and steem from 10 MNS in mrng.. if  u feel relaxed  fine.. Or if have long history of it I need more information to treat.. And I can opt better line of treatment Hope this is helpful for u.. With regard s..