you might have spinal stenosis OP. MRI would be in order for education sake then try to get nonoperative solutions. Im 58 and have same issue and am a doc
both my boys started killing pigs and deer with their small compounds when they were 7 and 9 years old, I cooked up heavy arrow in 400s range and 2 bladed magnus worked great for them for years , keep it inside 15 and you should be good. good luck