By the way, I remember doing this "exercise" (jumping and toucing the ceiling with my hands) a few times to provoke a rapid heart rate at my doctors office. I think my heart rate went up to 147 if I remember correctly.
So don't worry
No, a heart rate of 134 after 5 jumps like that is nothing to worry about, especially if you're a bit out of shape.
In everyone, the heart rate will increase quite a bit when we suddenly start an activity. It's caused by the massive adrenaline surge we get, which is normal (after all, if we suddenly were to run away from a threatening bear or wolf, we should be able to do so without having to slowly increase the heart rate).
I've often experienced heart rates in the 150s-160s when suddenly running up some stairs in the morning (if I'm late for work and I don't have time to wait for the elevator). It's the same heart rate as I have during running, even if I'm just doing the activity for 30 seconds or so.
Try to exercise and get into shape, and trust your doctor when he is saying that your heart is OK!