Sensory Processing Disorder - as a stand alone condition

Hello Folks! I'm a single Mum of one gorgeous (just) 13 yr old boy. He was born a surviving twin, 7 weeks early and spent the first three weeks on his life in SCBU. No major shakes as a baby or toddler (other than grommits at 18 months and slightly delayed physical developments. No academic nor learning difficulties at all but always "shy"/reluctant eye contact around new people, especially adults...not with peers or family. A year or so after our divorce (he was aged 7) he started displaying huge anxiety when going to and fro the two parental homes. Dad went on to drag him places he didn't want to go, including forcing him round the London Dungeons and onto the biggest theme park rides at both Alton Towers and then Disney. This all proved way too much and brought on massive anxiety and full blown panic attacks. Horrendous. After a few years of therpy sessions various, him not wanting to see Dad and refusal to stay over there, I finally had him properly doagnosed with Sensory Processing Disorder. HYPER sensitive to all 5 external senses and HYPO to all 3 internal ones. Whilst never diagnosed with Asperger's, as a LSA/TA I've got my suspicions he may be borderline (but to be honest it's mild and I think more self-confidence that makes him shy). We are getting a lid now on the panic attacks and the dianosis was a real relief, for us both, it gave him something to blame for his feelings and high anxiety. JUST WONDERING IF ANYONE KNOWS ANYTHING, OR HAS ANY ADVISE, OR IS IN SIMILAR SITUATION, AS HE ENTERS TEENAGERISM WITH ANXIETY/SHYNESS/SLIGHTLY CLUMSY WAYS (similar to Dyspraxia due to poor spatial awareness and hypermobile joints). Thank you! :)))