Hi mental!!
Welcome to the site and sorry that you have the need to ask but at least you have come to the right site for help.
I am not sure what all the aches and pains might be but I went to the docs when I was getting up 7/8times each night and was put on Tamsulosin tablets to try and help. After three months I went back to docs for more tablets and that was when he sent me for tests, MRI, bone scan and blood test for PSA reading. That was back in sept 2014 and in Feb this year the diagnosis was that I had aggressive prostate cancer but it was contained in my prostate and had not broken out.
My treatment was hormone therapy and radio therapy.
My point being that the sooner you go to the doctors the sooner you will know one way or the other what the problem is. It may be an enlarged prostate or something other than PCa. That fact that you have other aches and stool problems would be enough to get it all checked out.
There is no point in worrying until you know for sure so try to stay focused on what you know rather than what you do not know.
If the worst case scenario happens then stay on this forum and ask any questions that you want as there will be others on here that have gone through or are going through the various forms of PCa. There are also the "other halves" that can help as they, quite often, are the ones that have done lots of research as well as seeing their OH's treatments.
There is the "toolkit" that can be down loaded or have sent to you, this is very helpful for whatever level/ or type of PCa you might have.
Please let us know what the outcome of a visit to the docs or any tests may bring. Any diagnosis results ie PSA level, Gleason score, staging etc will be helpful to us here to be able to give advice. Fingers crossed that you will be all clear.
Best wishes Chris/Woody
Life seems different upside down, take another viewpoint.