Is there anyone who has low blood pressure like me and sinus
bradycardia (<60 bpm) but still took the beta blocker drops like
Timolol and had no issues?
I fit that category. My resting heart rate is similar to or lower than yours.
Did it also impact your exercise as I know beta blockers can hamper one’s cardiac output so exercise (especially strenuous) can be harder?
Initially I used Timolol at a dose of 3 drops per day. (Fortunately, I found better solutions very quickly so that I did not have to continue that dose.)
While I was using that dose, I took high amounts of ubiquinol (reduced form of CoQ10) and other cardiac support supplements. See this article, for some advice I offered 15 years ago that remains valid:
Use Coenzyme Q10 with Timolol Eye Drops for Glaucoma | FitEyes.com
I noticed a reduction in maximum heart rate while running, but curiously it did not affect my performance as far as I could tell. I was able to continue to set PR's. I heard a similar report last week from an endurance cyclist.
Exercise did not feel any more difficult. I did not really experience any recognizable side effects, but again, I was able to get off of that dose after a few months.
What was the secret?
I used non-pharmaceutical methods to manage my IOP (as discussed extensively on FitEyes).
This allowed me to reduce my Timolol to very small doses. After getting my lifestyle program (meditation, exercise, supplements, etc.) right, I only needed to take one drop of Timolol every 3-7 days. I monitored my need to take a drop via self-tonometry.
I continued my lifestyle program and I have not needed to use Timolol for years and I managed to reduce my IOP even further with new non-pharmaceutical methods (including PEAmium). Now I only need one microdrop (about 1/5th of a drop) of Zioptan daily instead of the 3 glaucoma drops I was taking (Xalatan, Propine 2x/day and Timolol 3x/day).
I have low blood pressure (daytime of 103/63)
My BP is not as low as yours. Timolol did not impact my BP as far as I could tell, but I don't tend to monitor BP as rigorously as I do IOP.
Here's another article from 15 years ago:
Managing My Blood Pressure and Eye Pressure While Sleeping | FitEyes.com
While I have had tremendous success managing my IOP, I still have not found anything that will bring my low BP up a bit (and I decided not to try increasing my salt intake because, as weird as it seems, that triggers allergies); I have not researched BP like I have IOP. Most of the ideas from the article immediately above did not work.
Maybe consider herbs for cardiac support and adrenal support as a starting point.