How concern should I be with working out?

normal BP 106/78 - HR 80
started CHF workout program at local hospital
1st & 2nd workout BP 104/74 - HR 78  after workout BP 106/78 - HR 84
next 2 days BP 91/70 - HR 88 -- didnt feel well - 3rd day BP back to normal
Yesterday work out again -- BP 104/76 - HR 78 // after workout BP 85/63 - HR 88 -- had to wait till BP got to 91 before nurses would let me leave. -- after i go home minor angina and BP stay in low 90,s (felt like crap)
This happen last year as well and no one would tell me why - I quit working out -- i am now a diabetic 2 and the workout drop my sugar from 180 to 140 (yes i ate 2 hrs before workout) plus i am now taking lasix 40mg 1 a day - I know i need to continue this program however i am feeling like crap now -
How concern should I be with the BP issues
thanks

[ed34]

It looks from the exercise that your heart is struggling. Maybe they should have reduced your work load to begin with, especially as your blood pressure dropped like that. I had this problem in 2007, after a triple bypass. For the first two sessions I went as white as a sheet and could hardly stand up straight. Nausea and dizziness is a horrible thing after exercise.
I nearly gave up but went along for the next session and things seemed to improve. It does take time for your body to adapt, however, they should not push you beyond your limits. As soon as you feel light headed, stop. It saves a lot of discomfort and nausea.

[ed34]

Sorry, just to add. I found that electronic equipment was too late in detecting the onset of problems. My brain was far quicker at detecting when something was going wrong or I was being pushed too hard. Trust your feelings, and stop. The eqiupment wont pick it up until you are in a fair amount of discomfort.