Hi! For tight muscle pain like that, massage is the BEST thing! Just get a friend to give you sholder rubs and try massaging things like, capsicum cream, deep heat, voltarin, anti flamme or arnica into sore places and onto your feet even if the dont hurt, as that helps to relax all around your neck and shoulders. Also you could ask if your doctor would prescribe diclofinac or orphenadrine to you as they help a lot with tight muscle pain and achey ness.
If it doesnt get better and you want to take no/less pain medication you should definitely try getting a prescription for Low Dose Naltrexone (Called LDN) it is commonly used as and opiod blocker, but in such a small does (4.5 mg) it just makes your body produce a lot more dopamine, which acts as a natural pain releif. LDN is the BEST thing I have ever tried!!! Its made more difference than everything else I have tried combined! It helps me sleep and means I dont feel achy in the morning and can go days without pain releif or massage. Before talking LDN I always felt horribly achy and sore in the mornings and had to take at least a mix of 9 different strong painkillers and needed at least one back massage a day. So it definitely help.
Hope this helped!