Im 65 years old, my PSA reading is 4.4. should I be concerned?

This is not a medical advice forum, but yes you should. Your doctor should have told you. Make an appointment with urologist. If you have cancer you will have to decide what you want to do. Look on line about PSA levels and when to be very concerned. Normal is less than four, so you decide.

talk with your doctor as blood pressure readings vary between patients, weights , age and health conditions
always have your blood pressure done by the doctor as that will give a record of any variations that could be harmful
at this point it seems slightly high but the bigger concern is the diabetes and what ever the heart condition is
again consult with your doctor and get a proper diagnosis

120 ~ 150

It is slightly below what everyone likes to call the "ideal" 120/80, but it is well within normal range. I would not get too concerned unless the top number drops below 90 for an extended period, or the bottom number gets into the lower 50's. Regardless, if you have concerns, discuss it with a medical professional.

Not knowing your medical history, age , etc... It is hard to answer. I can only tell you that my pulse has varied between 48 (in my early forties when I was playing a lot of soccer), to between 65 and 70 today and I am 62 years old. To me, a pulse rate of 65 sounds like a very healthy indicator. Of course, your doctor would be the person you should ask, since he or she knows your medical history.

fortunately dell has built in diagnostics that can assist you with identifying the problem. here is a link on how to run them. if the drive is bad then you would need to replace it and reinstall windows and drivers. if it is good then run memory diagnostics as well just to be safe. if both pass then you may have to do a destructive reinstall of windows because you most likely have a virus issue. copy and paste this link into your browser it will help you run the diagnostics.

http://www.cs.utexas.edu/~deke/laptopsupport/manuals/d600/diag.htm

hope this helps

well if it survives 20 years and water gamaging then it has a hope to b repaied but my suggestion is to u that u should replace it.