Replying to Early season shin bang :(

Hey NS. I have been riding the same pair of boots for seven seasons. I have skied about 5 days this season and have experienced some severe shin bang while riding. I haven’t gotten this in the past. I need to take a week off because I landed a little back seat today really
hard. Are there any remedies for this? I have been icing and taking ibprofin religiously. I want to get back out there but don’t want to ruin my shins for the season. How long will it last? Should I get new boots? It seems that the padding has lost its strength and my boots don’t get as tight as they used to. Is it a boot issue or an ability issue? Does shin bang come from poor skiing ability or simply having an old bad fitting boot? I want to know how to fix this before I ruin my shins for the season. Any advice appreciated.