I have put myself among other things on emotion balancing. I have noticed a couple days after going on it that I started feeling irritable, angry at things and people from the past, living them as if it's happening today. Is this a normal reaction please?

1. When it comes to emotions, they are a frequency/vibration of their own. When you start shifting the resonances in the body, the energies of the emotions that have been stored or have attached themselves to areas of the body in the same wavelengths will also begin to "move". Acknowledge them and do your best to release them (go scream, work out, garden, or whatever let's you expel energy )

Anger is generally associates with the Liver, so if any of your frequency sets are moving things in the Liver, part of the clearing/balancing will involve releasing anger. When the Liver/Gallbladder have been cleared, you will suddenly notice that even the people who get on your last nerve will elicit goodwill from you.

2. Have you run Terrain Protocol? 
If so, have you ran Terrain Protocol more than once?
Are you doing any other detox protocols other than Spooky2?

Detoxing heavy metals, chemicals and parasites is an ongoing process. Listening to various YouTube videos on detoxing heavy metals, I have heard them say it takes many years to clear them out of the body. 

Since you are in Wales, consider contacting Clive De Carle to get a minerals scan done.
MINERAL TESTING with Clive de Carle: 

3. I run David Halliday's experimental frequencies 1 to 5. No. 1 only occasionally but 2 through 5 every day. They have helped me a lot as I concentrate on the spiritual side of healing my tumors.
I haven't run 6 as I don't believe I'm ready yet.
There many healing programs available within Spooky. I kinda like the essential oils myself but there are many of them.

I finished running Terrain for a friend last Saturday and 7 days in he reported that he was using his phone on his right ear which has been deaf after an explosion in Vietnam. He then reported on Friday his eyes were watering, which concerned me, so I told him to have them checked. He rang me again on Monday to say he had it sorted and was driving quite well without them! His old prescription was way too strong!

My point is different things happen to different people. Your own thoughts will help you and guide you as you go down the road to recovery. 

As you post things on these forums that give people an indication of where you're at then many of the old hands, such as Karl and Gwen in this case so far, will offer guidance.

Blessings on you. To my mind anyone wrestling with PTSD deserve all the help they can get. There is almost always a sad story behind how they got there and even just getting it out usually helps.

4. In some people over-use of Subtle Energies can have an overwhelming effect on the central nervous system... a complete break from any Subtle Energy type treatments for 48/72 hours usually resolves this problem, as it allows the nervous system time to settle and re-balance.

For more details, please check the link:
https://www.spooky2.com/forums/viewtopic.php?f=18&t=9891