Welcome to the forum and Thank you for your post.
It would be worth asking your GP to refer you back to the hospital where your baby was delivered to go through your notes with the doctor who delivered your son.
There are often markers in a pregnancy which can help to identify what was going on and the severity.
Reduced reflexes are a symptom of PE but you need to know what your booking BP was through to its highest, what protein you had in your urine (if any) and what your blood markers were. Things like, platelet and urea levels. Were there any signs of your son being a small for dates baby or poor placental condition.
This information should help to plan the care you need in any subsequent pregnancy. For example, if there were high levels of protien but no high blood pressure then giving you dipsticks to use at home will be helpful.
You might want to ask questions about underlying conditions such as lupus, thyroid or sticky blood syndromes. These condidtions effect the way PE behaves but can be effectively managed - if you know about them as they are not routinely screened for.
You could also consider an expert referral (avaialble on the NHS). I can let you know of Experts in your area.
I hope this helps Kirsty but do let me know if there is something I have not covered or you would like more information about.
Every Woman is entitled to understand what happened in her pregnancy when pre eclampsia strikes. I hope to be able to support that process.