Hi Keyo,
I had exactly the same concerns as you post bleed.
I was advised on here to wait until I had my 6 week neurology consultation.
Prior to that I was walking/jogging about a mile, a couple of times a week.
After the neurologist told me there was no reason to not get back to my previous levels of exercise, I built up my exercise levels at a steady rate.
As mentioned on here , your body will quickly let you know your limits. You must keep hydrated, it's so important post SAH, headaches and tiredness are going to be part of your life for a period of time(still with me after two years) it is worse when you haven't drunk enough fluids.
You will find your own limits.
I find that Looking up for extended periods e.g painting a ceiling, or bending over for a long time, e.g gardening. Leave me feeling washed out and a bit thick headed.
Keep up the positive outlook, summer is nearly here. Enjoy!