Good to hear you got checked out, its always best to do so when you are concerned

Being a long time essential hypertension sufferer (high bp not related to pregnancy) and someone who had PE and high BP at the end of 6 of my 7 pregnancies while medicated, i was going to say your headache doesnt sound classic of a bp headache. BP headaches are behind your eyes and and out to your temples but generally equal on both sides, they dont tend to be on just one side. Its the bottom number they worry about most with bp, 140/90 is the lowest level of high during pregnancy, so with urs being 80 it was still in a good range. When i had PE i had high bp, alot of swelling and protein in my urine. Its ok to have a trace of protein but when u get into 1+ and 2+ and higher then you are looking at there being issues.

Never discount how your feeling though, if you dont feel right, go and get checked always. Sending lots of labour vibes for baby to come soon for you